使用 anaconda 在 windows 上安装 cvxpy：nosetests misrebally 失败
Installing cvxpy on windows with anaconda: failed nosetests misrebally
请慢慢解释我应该做什么。我正在尝试在我的机器上安装 cvxpy。我已经安装了 python、visual studio 构建工具并在命令提示符下进行了尝试，但在尝试安装时出现错误。所以我放弃了这个想法并安装了 anaconda，现在我可以安装但没有通过 nosetests。
(base) C:\Users\Ahmed>pip install --upgrade setuptools
Collecting setuptools
Using cached https://files.pythonhosted.org/packages/3d/72/1c1498c1e908e0562b1e1cd30012580baa7d33b5b0ffdbeb5fde2462cc71/setuptools-45.2.0-py3-none-any.whl
Installing collected packages: setuptools
Found existing installation: setuptools 41.4.0
Uninstalling setuptools-41.4.0:
Successfully uninstalled setuptools-41.4.0
Successfully installed setuptools-45.2.0
(base) C:\Users\Ahmed>pip uninstall cvxpy
Uninstalling cvxpy-1.0.28:
Would remove:
c:\users\ahmed\anaconda3\lib\site-packages\_cvxcore.cp37-win_amd64.pyd
c:\users\ahmed\anaconda3\lib\site-packages\cvxpy-1.0.28.dist-info\*
c:\users\ahmed\anaconda3\lib\site-packages\cvxpy\*
c:\users\ahmed\anaconda3\lib\site-packages\examples\*
Proceed (y/n)? y
Successfully uninstalled cvxpy-1.0.28
----------------------------------------------------------------------
Ran 2007 tests in 63.686s
FAILED (SKIP=3, errors=14, failures=2)
更新：我无法包含整个日志，因为它太长并且被标记为垃圾邮件。上下文是这样的：我不太记得编程，但我曾经学过。我正在尝试安装 cvxpy 以使用几何编程功能。我使用 cvxpy.org 上的说明在 windows 上进行安装，如下所示：
windows install instructions
并出现以下错误：
C:\Users\Ahmed>pip install cvxpy
Collecting cvxpy
Using cached cvxpy-1.0.28.tar.gz (947 kB)
Installing build dependencies ... done
Getting requirements to build wheel ... done
Preparing wheel metadata ... done
Collecting scs>=1.1.3
Using cached scs-2.1.1-2.tar.gz (157 kB)
ERROR: Command errored out with exit status 1:
command: 'c:\users\ahmed\appdata\local\programs\python\python38-32\python.exe' -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\Users\Ahmed\AppData\Local\Temp\pip-install-bg44_ccb\scs\setup.py'"'"'; __file__='"'"'C:\Users\Ahmed\AppData\Local\Temp\pip-install-bg44_ccb\scs\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base 'C:\Users\Ahmed\AppData\Local\Temp\pip-install-bg44_ccb\scs\pip-egg-info'
cwd: C:\Users\Ahmed\AppData\Local\Temp\pip-install-bg44_ccb\scs\
Complete output (100 lines):
Processing numpy/random\_bounded_integers.pxd.in
Processing numpy/random\mtrand.pyx
Traceback (most recent call last):
File "C:\Users\Ahmed\AppData\Local\Temp\easy_install-uiqw24ti\numpy-1.18.1\tools\cythonize.py", line 61, in process_pyx
from Cython.Compiler.Version import version as cython_version
ModuleNotFoundError: No module named 'Cython'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:\Users\Ahmed\AppData\Local\Temp\easy_install-uiqw24ti\numpy-1.18.1\tools\cythonize.py", line 238, in <module>
main()
File "C:\Users\Ahmed\AppData\Local\Temp\easy_install-uiqw24ti\numpy-1.18.1\tools\cythonize.py", line 234, in main
find_process_files(root_dir)
File "C:\Users\Ahmed\AppData\Local\Temp\easy_install-uiqw24ti\numpy-1.18.1\tools\cythonize.py", line 225, in find_process_files
process(root_dir, fromfile, tofile, function, hash_db)
File "C:\Users\Ahmed\AppData\Local\Temp\easy_install-uiqw24ti\numpy-1.18.1\tools\cythonize.py", line 191, in process
processor_function(fromfile, tofile)
File "C:\Users\Ahmed\AppData\Local\Temp\easy_install-uiqw24ti\numpy-1.18.1\tools\cythonize.py", line 66, in process_pyx
raise OSError('Cython needs to be installed in Python as a module')
OSError: Cython needs to be installed in Python as a module
Running from numpy source directory.
C:\Users\Ahmed\AppData\Local\Temp\easy_install-uiqw24ti\numpy-1.18.1\setup.py:461: UserWarning: Unrecognized setuptools command, proceeding with generating Cython sources and expanding templates
run_build = parse_setuppy_commands()
Traceback (most recent call last):
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\sandbox.py", line 154, in save_modules
yield saved
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\sandbox.py", line 195, in setup_context
yield
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\sandbox.py", line 250, in run_setup
_execfile(setup_script, ns)
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\sandbox.py", line 45, in _execfile
exec(code, globals, locals)
File "C:\Users\Ahmed\AppData\Local\Temp\easy_install-uiqw24ti\numpy-1.18.1\setup.py", line 488, in <module>
File "C:\Users\Ahmed\AppData\Local\Temp\easy_install-uiqw24ti\numpy-1.18.1\setup.py", line 469, in setup_package
File "C:\Users\Ahmed\AppData\Local\Temp\easy_install-uiqw24ti\numpy-1.18.1\setup.py", line 275, in generate_cython
RuntimeError: Running cythonize failed!
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "C:\Users\Ahmed\AppData\Local\Temp\pip-install-bg44_ccb\scs\setup.py", line 229, in <module>
run_install()
File "C:\Users\Ahmed\AppData\Local\Temp\pip-install-bg44_ccb\scs\setup.py", line 226, in run_install
install_scs()
File "C:\Users\Ahmed\AppData\Local\Temp\pip-install-bg44_ccb\scs\setup.py", line 201, in install_scs
setup(
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\__init__.py", line 144, in setup
_install_setup_requires(attrs)
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\__init__.py", line 139, in _install_setup_requires
dist.fetch_build_eggs(dist.setup_requires)
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\dist.py", line 716, in fetch_build_eggs
resolved_dists = pkg_resources.working_set.resolve(
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\pkg_resources\__init__.py", line 780, in resolve
dist = best[req.key] = env.best_match(
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\pkg_resources\__init__.py", line 1065, in best_match
return self.obtain(req, installer)
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\pkg_resources\__init__.py", line 1077, in obtain
return installer(requirement)
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\dist.py", line 786, in fetch_build_egg
return cmd.easy_install(req)
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\command\easy_install.py", line 679, in easy_install
return self.install_item(spec, dist.location, tmpdir, deps)
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\command\easy_install.py", line 705, in install_item
dists = self.install_eggs(spec, download, tmpdir)
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\command\easy_install.py", line 890, in install_eggs
return self.build_and_install(setup_script, setup_base)
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\command\easy_install.py", line 1158, in build_and_install
self.run_setup(setup_script, setup_base, args)
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\command\easy_install.py", line 1144, in run_setup
run_setup(setup_script, args)
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\sandbox.py", line 253, in run_setup
raise
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\contextlib.py", line 131, in __exit__
self.gen.throw(type, value, traceback)
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\sandbox.py", line 195, in setup_context
yield
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\contextlib.py", line 131, in __exit__
self.gen.throw(type, value, traceback)
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\sandbox.py", line 166, in save_modules
saved_exc.resume()
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\sandbox.py", line 141, in resume
six.reraise(type, exc, self._tb)
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\_vendor\six.py", line 685, in reraise
raise value.with_traceback(tb)
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\sandbox.py", line 154, in save_modules
yield saved
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\sandbox.py", line 195, in setup_context
yield
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\sandbox.py", line 250, in run_setup
_execfile(setup_script, ns)
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\sandbox.py", line 45, in _execfile
exec(code, globals, locals)
File "C:\Users\Ahmed\AppData\Local\Temp\easy_install-uiqw24ti\numpy-1.18.1\setup.py", line 488, in <module>
File "C:\Users\Ahmed\AppData\Local\Temp\easy_install-uiqw24ti\numpy-1.18.1\setup.py", line 469, in setup_package
File "C:\Users\Ahmed\AppData\Local\Temp\easy_install-uiqw24ti\numpy-1.18.1\setup.py", line 275, in generate_cython
RuntimeError: Running cythonize failed!
Namespace(blas64=False, extraverbose=False, float32=False, gpu=False, int32=False, scs=False)
Cythonizing sources
----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.
然后我决定使用必须安装的 Anaconda，然后使用以下说明：
Anaconda installation guide
pip 安装没有错误。来自 anaconda 提示的以下错误：
C:\Users\Ahmed>pip install cvxpy
Requirement already satisfied: cvxpy in c:\users\ahmed\anaconda3\lib\site-packages (1.0.28)
Requirement already satisfied: ecos>=2 in c:\users\ahmed\anaconda3\lib\site-packages (from cvxpy) (2.0.7.post1)
Requirement already satisfied: scs>=1.1.3 in c:\users\ahmed\anaconda3\lib\site-packages (from cvxpy) (2.1.1.post2)
Requirement already satisfied: scipy>=1.1.0 in c:\users\ahmed\anaconda3\lib\site-packages (from cvxpy) (1.3.1)
Requirement already satisfied: numpy>=1.15 in c:\users\ahmed\anaconda3\lib\site-packages (from cvxpy) (1.16.5)
Requirement already satisfied: multiprocess in c:\users\ahmed\anaconda3\lib\site-packages (from cvxpy) (0.70.9)
Requirement already satisfied: osqp>=0.4.1 in c:\users\ahmed\anaconda3\lib\site-packages (from cvxpy) (0.6.1)
Requirement already satisfied: dill>=0.3.1 in c:\users\ahmed\anaconda3\lib\site-packages (from multiprocess->cvxpy) (0.3.1.1)
Requirement already satisfied: future in c:\users\ahmed\anaconda3\lib\site-packages (from osqp>=0.4.1->cvxpy) (0.17.1)
鼻子测试错误如下：
======================================================================
ERROR: Test eigenvalue atoms.
----------------------------------------------------------------------
//Traceback left out
cvxpy.error.SolverError: Solver 'SCS' failed. Try another solver, or solve with verbose=True for more information.
-------------------- >> begin captured stdout << ---------------------
FATAL: Cannot solve SDPs with > 2x2 matrices without linked blas+lapack libraries
Install blas+lapack and re-compile SCS with blas+lapack libray locations
ERROR: init_cone failure
Failure:could not initialize work
--------------------- >> end captured stdout << ----------------------
======================================================================
ERROR: Test log det.
----------------------------------------------------------------------
//Traceback left out
"Try another solver, or solve with verbose=True for more "
cvxpy.error.SolverError: Solver 'SCS' failed. Try another solver, or solve with verbose=True for more information.
-------------------- >> begin captured stdout << ---------------------
FATAL: Cannot solve SDPs with > 2x2 matrices without linked blas+lapack libraries
Install blas+lapack and re-compile SCS with blas+lapack libray locations
ERROR: init_cone failure
Failure:could not initialize work
--------------------- >> end captured stdout << ----------------------
======================================================================
ERROR: Test matrix_frac atom.
----------------------------------------------------------------------
//Traceback left out
"Try another solver, or solve with verbose=True for more "
cvxpy.error.SolverError: Solver 'SCS' failed. Try another solver, or solve with verbose=True for more information.
-------------------- >> begin captured stdout << ---------------------
----------------------------------------------------------------------------
SCS v2.1.1 - Splitting Conic Solver
(c) Brendan O'Donoghue, Stanford University, 2012
----------------------------------------------------------------------------
Lin-sys: sparse-direct, nnz in A = 65
eps = 1.00e-06, alpha = 1.50, max_iters = 7500, normalize = 1, scale = 1.00
acceleration_lookback = 0, rho_x = 1.00e-03
Variables n = 26, constraints m = 46
Cones: primal zero / dual free vars: 31
sd vars: 15, sd blks: 1
FATAL: Cannot solve SDPs with > 2x2 matrices without linked blas+lapack libraries
Install blas+lapack and re-compile SCS with blas+lapack libray locations
ERROR: init_cone failure
Setup time: 2.11e-04s
Failure:could not initialize work
--------------------- >> end captured stdout << ----------------------
======================================================================
ERROR: Test matrix norms.
----------------------------------------------------------------------
Traceback (most recent call last):
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\tests\test_complex.py", line 304, in test_matrix_norms
result = prob.solve()
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\problems\problem.py", line 290, in solve
return solve_func(self, *args, **kwargs)
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\problems\problem.py", line 575, in _solve
self.unpack_results(solution, full_chain, inverse_data)
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\problems\problem.py", line 718, in unpack_results
"Try another solver, or solve with verbose=True for more "
cvxpy.error.SolverError: Solver 'SCS' failed. Try another solver, or solve with verbose=True for more information.
-------------------- >> begin captured stdout << ---------------------
FATAL: Cannot solve SDPs with > 2x2 matrices without linked blas+lapack libraries
Install blas+lapack and re-compile SCS with blas+lapack libray locations
ERROR: init_cone failure
Failure:could not initialize work
--------------------- >> end captured stdout << ----------------------
======================================================================
ERROR: Test Hermitian variables.
----------------------------------------------------------------------
//Traceback left out
"Try another solver, or solve with verbose=True for more "
cvxpy.error.SolverError: Solver 'SCS' failed. Try another solver, or solve with verbose=True for more information.
-------------------- >> begin captured stdout << ---------------------
FATAL: Cannot solve SDPs with > 2x2 matrices without linked blas+lapack libraries
Install blas+lapack and re-compile SCS with blas+lapack libray locations
ERROR: init_cone failure
Failure:could not initialize work
--------------------- >> end captured stdout << ----------------------
======================================================================
ERROR: Test with special index.
----------------------------------------------------------------------
//Traceback left out
"Try another solver, or solve with verbose=True for more "
cvxpy.error.SolverError: Solver 'SCS' failed. Try another solver, or solve with verbose=True for more information.
-------------------- >> begin captured stdout << ---------------------
FATAL: Cannot solve SDPs with > 2x2 matrices without linked blas+lapack libraries
Install blas+lapack and re-compile SCS with blas+lapack libray locations
ERROR: init_cone failure
Failure:could not initialize work
--------------------- >> end captured stdout << ----------------------
======================================================================
ERROR: test_gen_lambda_max_matrix_completion (cvxpy.tests.test_dqcp.TestDqcp)
----------------------------------------------------------------------
Traceback (most recent call last):
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\tests\test_dqcp.py", line 466, in test_gen_lambda_max_matrix_completion
problem.solve(cp.SCS, qcp=True)
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\problems\problem.py", line 290, in solve
return solve_func(self, *args, **kwargs)
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\problems\problem.py", line 558, in _solve
chain.reduce(), solver=solver, verbose=verbose, **kwargs)
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\reductions\solvers\bisection.py", line 167, in bisect
_solve(lowered_feas, solver)
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\reductions\solvers\bisection.py", line 36, in _solve
problem.solve(solver=solver)
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\problems\problem.py", line 290, in solve
return solve_func(self, *args, **kwargs)
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\problems\problem.py", line 575, in _solve
self.unpack_results(solution, full_chain, inverse_data)
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\problems\problem.py", line 718, in unpack_results
"Try another solver, or solve with verbose=True for more "
cvxpy.error.SolverError: Solver 'SCS' failed. Try another solver, or solve with verbose=True for more information.
-------------------- >> begin captured stdout << ---------------------
WARN: m less than n, problem likely degenerate
WARN: A->p (column pointers) not strictly increasing, column 7 empty
WARN: A->p (column pointers) not strictly increasing, column 8 empty
WARN: A->p (column pointers) not strictly increasing, column 9 empty
WARN: A->p (column pointers) not strictly increasing, column 11 empty
WARN: A->p (column pointers) not strictly increasing, column 13 empty
WARN: A->p (column pointers) not strictly increasing, column 14 empty
FATAL: Cannot solve SDPs with > 2x2 matrices without linked blas+lapack libraries
Install blas+lapack and re-compile SCS with blas+lapack libray locations
ERROR: init_cone failure
Failure:could not initialize work
--------------------- >> end captured stdout << ----------------------
======================================================================
ERROR: test_log_det (cvxpy.tests.test_examples.TestExamples)
----------------------------------------------------------------------
//Traceback left out
"Try another solver, or solve with verbose=True for more "
cvxpy.error.SolverError: Solver 'SCS' failed. Try another solver, or solve with verbose=True for more information.
-------------------- >> begin captured stdout << ---------------------
FATAL: Cannot solve SDPs with > 2x2 matrices without linked blas+lapack libraries
Install blas+lapack and re-compile SCS with blas+lapack libray locations
ERROR: init_cone failure
Failure:could not initialize work
--------------------- >> end captured stdout << ----------------------
======================================================================
ERROR: Test a problem with diag.
----------------------------------------------------------------------
Traceback (most recent call last):
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\tests\test_problem.py", line 1430, in test_diag_prob
result = prob.solve()
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\problems\problem.py", line 290, in solve
return solve_func(self, *args, **kwargs)
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\problems\problem.py", line 575, in _solve
self.unpack_results(solution, full_chain, inverse_data)
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\problems\problem.py", line 718, in unpack_results
"Try another solver, or solve with verbose=True for more "
cvxpy.error.SolverError: Solver 'SCS' failed. Try another solver, or solve with verbose=True for more information.
-------------------- >> begin captured stdout << ---------------------
FATAL: Cannot solve SDPs with > 2x2 matrices without linked blas+lapack libraries
Install blas+lapack and re-compile SCS with blas+lapack libray locations
ERROR: init_cone failure
Failure:could not initialize work
--------------------- >> end captured stdout << ----------------------
======================================================================
ERROR: Test positive definite constraints.
----------------------------------------------------------------------
//Traceback left out
"Try another solver, or solve with verbose=True for more "
cvxpy.error.SolverError: Solver 'SCS' failed. Try another solver, or solve with verbose=True for more information.
-------------------- >> begin captured stdout << ---------------------
FATAL: Cannot solve SDPs with > 2x2 matrices without linked blas+lapack libraries
Install blas+lapack and re-compile SCS with blas+lapack libray locations
ERROR: init_cone failure
Failure:could not initialize work
--------------------- >> end captured stdout << ----------------------
======================================================================
ERROR: Test complex matrices.
----------------------------------------------------------------------
//Traceback left out
-------------------- >> begin captured stdout << ---------------------
FATAL: Cannot solve SDPs with > 2x2 matrices without linked blas+lapack libraries
Install blas+lapack and re-compile SCS with blas+lapack libray locations
ERROR: init_cone failure
Failure:could not initialize work
--------------------- >> end captured stdout << ----------------------
======================================================================
ERROR: Test sdp var.
----------------------------------------------------------------------
//Traceback left out
"Try another solver, or solve with verbose=True for more "
cvxpy.error.SolverError: Solver 'SCS' failed. Try another solver, or solve with verbose=True for more information.
-------------------- >> begin captured stdout << ---------------------
----------------------------------------------------------------------------
SCS v2.1.1 - Splitting Conic Solver
(c) Brendan O'Donoghue, Stanford University, 2012
----------------------------------------------------------------------------
Lin-sys: sparse-direct, nnz in A = 15
eps = 1.00e-04, alpha = 1.50, max_iters = 5000, normalize = 1, scale = 1.00
acceleration_lookback = 0, rho_x = 1.00e-03
Variables n = 6, constraints m = 15
Cones: primal zero / dual free vars: 9
sd vars: 6, sd blks: 1
FATAL: Cannot solve SDPs with > 2x2 matrices without linked blas+lapack libraries
Install blas+lapack and re-compile SCS with blas+lapack libray locations
ERROR: init_cone failure
Setup time: 3.62e-04s
Failure:could not initialize work
--------------------- >> end captured stdout << ----------------------
======================================================================
ERROR: Test sigma_max.
----------------------------------------------------------------------
//Traceback left out
"Try another solver, or solve with verbose=True for more "
cvxpy.error.SolverError: Solver 'SCS' failed. Try another solver, or solve with verbose=True for more information.
-------------------- >> begin captured stdout << ---------------------
FATAL: Cannot solve SDPs with > 2x2 matrices without linked blas+lapack libraries
Install blas+lapack and re-compile SCS with blas+lapack libray locations
ERROR: init_cone failure
Failure:could not initialize work
--------------------- >> end captured stdout << ----------------------
======================================================================
ERROR: Test that results are symmetric.
----------------------------------------------------------------------
Traceback (most recent call last):
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\tests\test_semidefinite_vars.py", line 43, in test_symm
prob.solve()
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\problems\problem.py", line 290, in solve
return solve_func(self, *args, **kwargs)
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\problems\problem.py", line 575, in _solve
self.unpack_results(solution, full_chain, inverse_data)
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\problems\problem.py", line 718, in unpack_results
"Try another solver, or solve with verbose=True for more "
cvxpy.error.SolverError: Solver 'SCS' failed. Try another solver, or solve with verbose=True for more information.
-------------------- >> begin captured stdout << ---------------------
FATAL: Cannot solve SDPs with > 2x2 matrices without linked blas+lapack libraries
Install blas+lapack and re-compile SCS with blas+lapack libray locations
ERROR: init_cone failure
Failure:could not initialize work
--------------------- >> end captured stdout << ----------------------
======================================================================
FAIL: Test silencing and enabling solver messages.
----------------------------------------------------------------------
Traceback (most recent call last):
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\tests\test_problem.py", line 281, in test_verbose
assert len(output) == 0
AssertionError:
-------------------- >> begin captured stdout << ---------------------
ECOS
ECOS_BB
OSQP
SCS
ECOS
ECOS_BB
OSQP
SCS
--------------------- >> end captured stdout << ----------------------
======================================================================
FAIL: test_sdp_problem (cvxpy.tests.test_semidefinite_vars.TestSemidefiniteVariable)
----------------------------------------------------------------------
Traceback (most recent call last):
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\tests\test_semidefinite_vars.py", line 51, in test_sdp_problem
self.assertAlmostEqual(result, 1, places=4)
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\tests\base_test.py", line 38, in assertAlmostEqual
super(BaseTest, self).assertAlmostEqual(a, b, places=places)
AssertionError: 0.999896846515758 != 1 within 4 places (0.00010315348424194681 difference)
-------------------- >> begin captured stdout << ---------------------
WARN: aa_init returned NULL, no acceleration applied.
--------------------- >> end captured stdout << ----------------------
----------------------------------------------------------------------
Ran 2007 tests in 72.683s
FAILED (SKIP=3, errors=14, failures=2)
我终于能够成功安装cvxpy了。我发现这个 github issue 非常有帮助。我最终安装了 Python 3.8（64 位）而不是我偶然安装的（32 位）。我安装了
(numpy+mkl, scipy, cvxopt, scs, ecos, and osqp) in that order and all from downloaded wheels except for scs which I did using pip install scs I then did pip install nose and then nosetests cvxpy and go the following output:
----------------------------------------------------------------------
Ran 0 tests in 0.000s
OK
可以找到预编译的轮子here。只需下载每一个并将其移动到您的工作目录，然后 运行 pip install filename.whl
请慢慢解释我应该做什么。我正在尝试在我的机器上安装 cvxpy。我已经安装了 python、visual studio 构建工具并在命令提示符下进行了尝试，但在尝试安装时出现错误。所以我放弃了这个想法并安装了 anaconda，现在我可以安装但没有通过 nosetests。
(base) C:\Users\Ahmed>pip install --upgrade setuptools
Collecting setuptools
Using cached https://files.pythonhosted.org/packages/3d/72/1c1498c1e908e0562b1e1cd30012580baa7d33b5b0ffdbeb5fde2462cc71/setuptools-45.2.0-py3-none-any.whl
Installing collected packages: setuptools
Found existing installation: setuptools 41.4.0
Uninstalling setuptools-41.4.0:
Successfully uninstalled setuptools-41.4.0
Successfully installed setuptools-45.2.0
(base) C:\Users\Ahmed>pip uninstall cvxpy
Uninstalling cvxpy-1.0.28:
Would remove:
c:\users\ahmed\anaconda3\lib\site-packages\_cvxcore.cp37-win_amd64.pyd
c:\users\ahmed\anaconda3\lib\site-packages\cvxpy-1.0.28.dist-info\*
c:\users\ahmed\anaconda3\lib\site-packages\cvxpy\*
c:\users\ahmed\anaconda3\lib\site-packages\examples\*
Proceed (y/n)? y
Successfully uninstalled cvxpy-1.0.28
----------------------------------------------------------------------
Ran 2007 tests in 63.686s
FAILED (SKIP=3, errors=14, failures=2)
更新：我无法包含整个日志，因为它太长并且被标记为垃圾邮件。上下文是这样的：我不太记得编程，但我曾经学过。我正在尝试安装 cvxpy 以使用几何编程功能。我使用 cvxpy.org 上的说明在 windows 上进行安装，如下所示：
windows install instructions
并出现以下错误：
C:\Users\Ahmed>pip install cvxpy
Collecting cvxpy
Using cached cvxpy-1.0.28.tar.gz (947 kB)
Installing build dependencies ... done
Getting requirements to build wheel ... done
Preparing wheel metadata ... done
Collecting scs>=1.1.3
Using cached scs-2.1.1-2.tar.gz (157 kB)
ERROR: Command errored out with exit status 1:
command: 'c:\users\ahmed\appdata\local\programs\python\python38-32\python.exe' -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\Users\Ahmed\AppData\Local\Temp\pip-install-bg44_ccb\scs\setup.py'"'"'; __file__='"'"'C:\Users\Ahmed\AppData\Local\Temp\pip-install-bg44_ccb\scs\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base 'C:\Users\Ahmed\AppData\Local\Temp\pip-install-bg44_ccb\scs\pip-egg-info'
cwd: C:\Users\Ahmed\AppData\Local\Temp\pip-install-bg44_ccb\scs\
Complete output (100 lines):
Processing numpy/random\_bounded_integers.pxd.in
Processing numpy/random\mtrand.pyx
Traceback (most recent call last):
File "C:\Users\Ahmed\AppData\Local\Temp\easy_install-uiqw24ti\numpy-1.18.1\tools\cythonize.py", line 61, in process_pyx
from Cython.Compiler.Version import version as cython_version
ModuleNotFoundError: No module named 'Cython'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:\Users\Ahmed\AppData\Local\Temp\easy_install-uiqw24ti\numpy-1.18.1\tools\cythonize.py", line 238, in <module>
main()
File "C:\Users\Ahmed\AppData\Local\Temp\easy_install-uiqw24ti\numpy-1.18.1\tools\cythonize.py", line 234, in main
find_process_files(root_dir)
File "C:\Users\Ahmed\AppData\Local\Temp\easy_install-uiqw24ti\numpy-1.18.1\tools\cythonize.py", line 225, in find_process_files
process(root_dir, fromfile, tofile, function, hash_db)
File "C:\Users\Ahmed\AppData\Local\Temp\easy_install-uiqw24ti\numpy-1.18.1\tools\cythonize.py", line 191, in process
processor_function(fromfile, tofile)
File "C:\Users\Ahmed\AppData\Local\Temp\easy_install-uiqw24ti\numpy-1.18.1\tools\cythonize.py", line 66, in process_pyx
raise OSError('Cython needs to be installed in Python as a module')
OSError: Cython needs to be installed in Python as a module
Running from numpy source directory.
C:\Users\Ahmed\AppData\Local\Temp\easy_install-uiqw24ti\numpy-1.18.1\setup.py:461: UserWarning: Unrecognized setuptools command, proceeding with generating Cython sources and expanding templates
run_build = parse_setuppy_commands()
Traceback (most recent call last):
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\sandbox.py", line 154, in save_modules
yield saved
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\sandbox.py", line 195, in setup_context
yield
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\sandbox.py", line 250, in run_setup
_execfile(setup_script, ns)
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\sandbox.py", line 45, in _execfile
exec(code, globals, locals)
File "C:\Users\Ahmed\AppData\Local\Temp\easy_install-uiqw24ti\numpy-1.18.1\setup.py", line 488, in <module>
File "C:\Users\Ahmed\AppData\Local\Temp\easy_install-uiqw24ti\numpy-1.18.1\setup.py", line 469, in setup_package
File "C:\Users\Ahmed\AppData\Local\Temp\easy_install-uiqw24ti\numpy-1.18.1\setup.py", line 275, in generate_cython
RuntimeError: Running cythonize failed!
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "C:\Users\Ahmed\AppData\Local\Temp\pip-install-bg44_ccb\scs\setup.py", line 229, in <module>
run_install()
File "C:\Users\Ahmed\AppData\Local\Temp\pip-install-bg44_ccb\scs\setup.py", line 226, in run_install
install_scs()
File "C:\Users\Ahmed\AppData\Local\Temp\pip-install-bg44_ccb\scs\setup.py", line 201, in install_scs
setup(
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\__init__.py", line 144, in setup
_install_setup_requires(attrs)
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\__init__.py", line 139, in _install_setup_requires
dist.fetch_build_eggs(dist.setup_requires)
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\dist.py", line 716, in fetch_build_eggs
resolved_dists = pkg_resources.working_set.resolve(
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\pkg_resources\__init__.py", line 780, in resolve
dist = best[req.key] = env.best_match(
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\pkg_resources\__init__.py", line 1065, in best_match
return self.obtain(req, installer)
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\pkg_resources\__init__.py", line 1077, in obtain
return installer(requirement)
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\dist.py", line 786, in fetch_build_egg
return cmd.easy_install(req)
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\command\easy_install.py", line 679, in easy_install
return self.install_item(spec, dist.location, tmpdir, deps)
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\command\easy_install.py", line 705, in install_item
dists = self.install_eggs(spec, download, tmpdir)
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\command\easy_install.py", line 890, in install_eggs
return self.build_and_install(setup_script, setup_base)
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\command\easy_install.py", line 1158, in build_and_install
self.run_setup(setup_script, setup_base, args)
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\command\easy_install.py", line 1144, in run_setup
run_setup(setup_script, args)
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\sandbox.py", line 253, in run_setup
raise
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\contextlib.py", line 131, in __exit__
self.gen.throw(type, value, traceback)
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\sandbox.py", line 195, in setup_context
yield
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\contextlib.py", line 131, in __exit__
self.gen.throw(type, value, traceback)
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\sandbox.py", line 166, in save_modules
saved_exc.resume()
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\sandbox.py", line 141, in resume
six.reraise(type, exc, self._tb)
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\_vendor\six.py", line 685, in reraise
raise value.with_traceback(tb)
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\sandbox.py", line 154, in save_modules
yield saved
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\sandbox.py", line 195, in setup_context
yield
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\sandbox.py", line 250, in run_setup
_execfile(setup_script, ns)
File "c:\users\ahmed\appdata\local\programs\python\python38-32\lib\site-packages\setuptools\sandbox.py", line 45, in _execfile
exec(code, globals, locals)
File "C:\Users\Ahmed\AppData\Local\Temp\easy_install-uiqw24ti\numpy-1.18.1\setup.py", line 488, in <module>
File "C:\Users\Ahmed\AppData\Local\Temp\easy_install-uiqw24ti\numpy-1.18.1\setup.py", line 469, in setup_package
File "C:\Users\Ahmed\AppData\Local\Temp\easy_install-uiqw24ti\numpy-1.18.1\setup.py", line 275, in generate_cython
RuntimeError: Running cythonize failed!
Namespace(blas64=False, extraverbose=False, float32=False, gpu=False, int32=False, scs=False)
Cythonizing sources
----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.
然后我决定使用必须安装的 Anaconda，然后使用以下说明：
Anaconda installation guide
pip 安装没有错误。来自 anaconda 提示的以下错误：
C:\Users\Ahmed>pip install cvxpy
Requirement already satisfied: cvxpy in c:\users\ahmed\anaconda3\lib\site-packages (1.0.28)
Requirement already satisfied: ecos>=2 in c:\users\ahmed\anaconda3\lib\site-packages (from cvxpy) (2.0.7.post1)
Requirement already satisfied: scs>=1.1.3 in c:\users\ahmed\anaconda3\lib\site-packages (from cvxpy) (2.1.1.post2)
Requirement already satisfied: scipy>=1.1.0 in c:\users\ahmed\anaconda3\lib\site-packages (from cvxpy) (1.3.1)
Requirement already satisfied: numpy>=1.15 in c:\users\ahmed\anaconda3\lib\site-packages (from cvxpy) (1.16.5)
Requirement already satisfied: multiprocess in c:\users\ahmed\anaconda3\lib\site-packages (from cvxpy) (0.70.9)
Requirement already satisfied: osqp>=0.4.1 in c:\users\ahmed\anaconda3\lib\site-packages (from cvxpy) (0.6.1)
Requirement already satisfied: dill>=0.3.1 in c:\users\ahmed\anaconda3\lib\site-packages (from multiprocess->cvxpy) (0.3.1.1)
Requirement already satisfied: future in c:\users\ahmed\anaconda3\lib\site-packages (from osqp>=0.4.1->cvxpy) (0.17.1)
鼻子测试错误如下：
======================================================================
ERROR: Test eigenvalue atoms.
----------------------------------------------------------------------
//Traceback left out
cvxpy.error.SolverError: Solver 'SCS' failed. Try another solver, or solve with verbose=True for more information.
-------------------- >> begin captured stdout << ---------------------
FATAL: Cannot solve SDPs with > 2x2 matrices without linked blas+lapack libraries
Install blas+lapack and re-compile SCS with blas+lapack libray locations
ERROR: init_cone failure
Failure:could not initialize work
--------------------- >> end captured stdout << ----------------------
======================================================================
ERROR: Test log det.
----------------------------------------------------------------------
//Traceback left out
"Try another solver, or solve with verbose=True for more "
cvxpy.error.SolverError: Solver 'SCS' failed. Try another solver, or solve with verbose=True for more information.
-------------------- >> begin captured stdout << ---------------------
FATAL: Cannot solve SDPs with > 2x2 matrices without linked blas+lapack libraries
Install blas+lapack and re-compile SCS with blas+lapack libray locations
ERROR: init_cone failure
Failure:could not initialize work
--------------------- >> end captured stdout << ----------------------
======================================================================
ERROR: Test matrix_frac atom.
----------------------------------------------------------------------
//Traceback left out
"Try another solver, or solve with verbose=True for more "
cvxpy.error.SolverError: Solver 'SCS' failed. Try another solver, or solve with verbose=True for more information.
-------------------- >> begin captured stdout << ---------------------
----------------------------------------------------------------------------
SCS v2.1.1 - Splitting Conic Solver
(c) Brendan O'Donoghue, Stanford University, 2012
----------------------------------------------------------------------------
Lin-sys: sparse-direct, nnz in A = 65
eps = 1.00e-06, alpha = 1.50, max_iters = 7500, normalize = 1, scale = 1.00
acceleration_lookback = 0, rho_x = 1.00e-03
Variables n = 26, constraints m = 46
Cones: primal zero / dual free vars: 31
sd vars: 15, sd blks: 1
FATAL: Cannot solve SDPs with > 2x2 matrices without linked blas+lapack libraries
Install blas+lapack and re-compile SCS with blas+lapack libray locations
ERROR: init_cone failure
Setup time: 2.11e-04s
Failure:could not initialize work
--------------------- >> end captured stdout << ----------------------
======================================================================
ERROR: Test matrix norms.
----------------------------------------------------------------------
Traceback (most recent call last):
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\tests\test_complex.py", line 304, in test_matrix_norms
result = prob.solve()
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\problems\problem.py", line 290, in solve
return solve_func(self, *args, **kwargs)
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\problems\problem.py", line 575, in _solve
self.unpack_results(solution, full_chain, inverse_data)
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\problems\problem.py", line 718, in unpack_results
"Try another solver, or solve with verbose=True for more "
cvxpy.error.SolverError: Solver 'SCS' failed. Try another solver, or solve with verbose=True for more information.
-------------------- >> begin captured stdout << ---------------------
FATAL: Cannot solve SDPs with > 2x2 matrices without linked blas+lapack libraries
Install blas+lapack and re-compile SCS with blas+lapack libray locations
ERROR: init_cone failure
Failure:could not initialize work
--------------------- >> end captured stdout << ----------------------
======================================================================
ERROR: Test Hermitian variables.
----------------------------------------------------------------------
//Traceback left out
"Try another solver, or solve with verbose=True for more "
cvxpy.error.SolverError: Solver 'SCS' failed. Try another solver, or solve with verbose=True for more information.
-------------------- >> begin captured stdout << ---------------------
FATAL: Cannot solve SDPs with > 2x2 matrices without linked blas+lapack libraries
Install blas+lapack and re-compile SCS with blas+lapack libray locations
ERROR: init_cone failure
Failure:could not initialize work
--------------------- >> end captured stdout << ----------------------
======================================================================
ERROR: Test with special index.
----------------------------------------------------------------------
//Traceback left out
"Try another solver, or solve with verbose=True for more "
cvxpy.error.SolverError: Solver 'SCS' failed. Try another solver, or solve with verbose=True for more information.
-------------------- >> begin captured stdout << ---------------------
FATAL: Cannot solve SDPs with > 2x2 matrices without linked blas+lapack libraries
Install blas+lapack and re-compile SCS with blas+lapack libray locations
ERROR: init_cone failure
Failure:could not initialize work
--------------------- >> end captured stdout << ----------------------
======================================================================
ERROR: test_gen_lambda_max_matrix_completion (cvxpy.tests.test_dqcp.TestDqcp)
----------------------------------------------------------------------
Traceback (most recent call last):
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\tests\test_dqcp.py", line 466, in test_gen_lambda_max_matrix_completion
problem.solve(cp.SCS, qcp=True)
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\problems\problem.py", line 290, in solve
return solve_func(self, *args, **kwargs)
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\problems\problem.py", line 558, in _solve
chain.reduce(), solver=solver, verbose=verbose, **kwargs)
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\reductions\solvers\bisection.py", line 167, in bisect
_solve(lowered_feas, solver)
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\reductions\solvers\bisection.py", line 36, in _solve
problem.solve(solver=solver)
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\problems\problem.py", line 290, in solve
return solve_func(self, *args, **kwargs)
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\problems\problem.py", line 575, in _solve
self.unpack_results(solution, full_chain, inverse_data)
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\problems\problem.py", line 718, in unpack_results
"Try another solver, or solve with verbose=True for more "
cvxpy.error.SolverError: Solver 'SCS' failed. Try another solver, or solve with verbose=True for more information.
-------------------- >> begin captured stdout << ---------------------
WARN: m less than n, problem likely degenerate
WARN: A->p (column pointers) not strictly increasing, column 7 empty
WARN: A->p (column pointers) not strictly increasing, column 8 empty
WARN: A->p (column pointers) not strictly increasing, column 9 empty
WARN: A->p (column pointers) not strictly increasing, column 11 empty
WARN: A->p (column pointers) not strictly increasing, column 13 empty
WARN: A->p (column pointers) not strictly increasing, column 14 empty
FATAL: Cannot solve SDPs with > 2x2 matrices without linked blas+lapack libraries
Install blas+lapack and re-compile SCS with blas+lapack libray locations
ERROR: init_cone failure
Failure:could not initialize work
--------------------- >> end captured stdout << ----------------------
======================================================================
ERROR: test_log_det (cvxpy.tests.test_examples.TestExamples)
----------------------------------------------------------------------
//Traceback left out
"Try another solver, or solve with verbose=True for more "
cvxpy.error.SolverError: Solver 'SCS' failed. Try another solver, or solve with verbose=True for more information.
-------------------- >> begin captured stdout << ---------------------
FATAL: Cannot solve SDPs with > 2x2 matrices without linked blas+lapack libraries
Install blas+lapack and re-compile SCS with blas+lapack libray locations
ERROR: init_cone failure
Failure:could not initialize work
--------------------- >> end captured stdout << ----------------------
======================================================================
ERROR: Test a problem with diag.
----------------------------------------------------------------------
Traceback (most recent call last):
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\tests\test_problem.py", line 1430, in test_diag_prob
result = prob.solve()
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\problems\problem.py", line 290, in solve
return solve_func(self, *args, **kwargs)
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\problems\problem.py", line 575, in _solve
self.unpack_results(solution, full_chain, inverse_data)
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\problems\problem.py", line 718, in unpack_results
"Try another solver, or solve with verbose=True for more "
cvxpy.error.SolverError: Solver 'SCS' failed. Try another solver, or solve with verbose=True for more information.
-------------------- >> begin captured stdout << ---------------------
FATAL: Cannot solve SDPs with > 2x2 matrices without linked blas+lapack libraries
Install blas+lapack and re-compile SCS with blas+lapack libray locations
ERROR: init_cone failure
Failure:could not initialize work
--------------------- >> end captured stdout << ----------------------
======================================================================
ERROR: Test positive definite constraints.
----------------------------------------------------------------------
//Traceback left out
"Try another solver, or solve with verbose=True for more "
cvxpy.error.SolverError: Solver 'SCS' failed. Try another solver, or solve with verbose=True for more information.
-------------------- >> begin captured stdout << ---------------------
FATAL: Cannot solve SDPs with > 2x2 matrices without linked blas+lapack libraries
Install blas+lapack and re-compile SCS with blas+lapack libray locations
ERROR: init_cone failure
Failure:could not initialize work
--------------------- >> end captured stdout << ----------------------
======================================================================
ERROR: Test complex matrices.
----------------------------------------------------------------------
//Traceback left out
-------------------- >> begin captured stdout << ---------------------
FATAL: Cannot solve SDPs with > 2x2 matrices without linked blas+lapack libraries
Install blas+lapack and re-compile SCS with blas+lapack libray locations
ERROR: init_cone failure
Failure:could not initialize work
--------------------- >> end captured stdout << ----------------------
======================================================================
ERROR: Test sdp var.
----------------------------------------------------------------------
//Traceback left out
"Try another solver, or solve with verbose=True for more "
cvxpy.error.SolverError: Solver 'SCS' failed. Try another solver, or solve with verbose=True for more information.
-------------------- >> begin captured stdout << ---------------------
----------------------------------------------------------------------------
SCS v2.1.1 - Splitting Conic Solver
(c) Brendan O'Donoghue, Stanford University, 2012
----------------------------------------------------------------------------
Lin-sys: sparse-direct, nnz in A = 15
eps = 1.00e-04, alpha = 1.50, max_iters = 5000, normalize = 1, scale = 1.00
acceleration_lookback = 0, rho_x = 1.00e-03
Variables n = 6, constraints m = 15
Cones: primal zero / dual free vars: 9
sd vars: 6, sd blks: 1
FATAL: Cannot solve SDPs with > 2x2 matrices without linked blas+lapack libraries
Install blas+lapack and re-compile SCS with blas+lapack libray locations
ERROR: init_cone failure
Setup time: 3.62e-04s
Failure:could not initialize work
--------------------- >> end captured stdout << ----------------------
======================================================================
ERROR: Test sigma_max.
----------------------------------------------------------------------
//Traceback left out
"Try another solver, or solve with verbose=True for more "
cvxpy.error.SolverError: Solver 'SCS' failed. Try another solver, or solve with verbose=True for more information.
-------------------- >> begin captured stdout << ---------------------
FATAL: Cannot solve SDPs with > 2x2 matrices without linked blas+lapack libraries
Install blas+lapack and re-compile SCS with blas+lapack libray locations
ERROR: init_cone failure
Failure:could not initialize work
--------------------- >> end captured stdout << ----------------------
======================================================================
ERROR: Test that results are symmetric.
----------------------------------------------------------------------
Traceback (most recent call last):
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\tests\test_semidefinite_vars.py", line 43, in test_symm
prob.solve()
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\problems\problem.py", line 290, in solve
return solve_func(self, *args, **kwargs)
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\problems\problem.py", line 575, in _solve
self.unpack_results(solution, full_chain, inverse_data)
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\problems\problem.py", line 718, in unpack_results
"Try another solver, or solve with verbose=True for more "
cvxpy.error.SolverError: Solver 'SCS' failed. Try another solver, or solve with verbose=True for more information.
-------------------- >> begin captured stdout << ---------------------
FATAL: Cannot solve SDPs with > 2x2 matrices without linked blas+lapack libraries
Install blas+lapack and re-compile SCS with blas+lapack libray locations
ERROR: init_cone failure
Failure:could not initialize work
--------------------- >> end captured stdout << ----------------------
======================================================================
FAIL: Test silencing and enabling solver messages.
----------------------------------------------------------------------
Traceback (most recent call last):
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\tests\test_problem.py", line 281, in test_verbose
assert len(output) == 0
AssertionError:
-------------------- >> begin captured stdout << ---------------------
ECOS
ECOS_BB
OSQP
SCS
ECOS
ECOS_BB
OSQP
SCS
--------------------- >> end captured stdout << ----------------------
======================================================================
FAIL: test_sdp_problem (cvxpy.tests.test_semidefinite_vars.TestSemidefiniteVariable)
----------------------------------------------------------------------
Traceback (most recent call last):
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\tests\test_semidefinite_vars.py", line 51, in test_sdp_problem
self.assertAlmostEqual(result, 1, places=4)
File "C:\Users\Ahmed\Anaconda3\lib\site-packages\cvxpy\tests\base_test.py", line 38, in assertAlmostEqual
super(BaseTest, self).assertAlmostEqual(a, b, places=places)
AssertionError: 0.999896846515758 != 1 within 4 places (0.00010315348424194681 difference)
-------------------- >> begin captured stdout << ---------------------
WARN: aa_init returned NULL, no acceleration applied.
--------------------- >> end captured stdout << ----------------------
----------------------------------------------------------------------
Ran 2007 tests in 72.683s
FAILED (SKIP=3, errors=14, failures=2)
我终于能够成功安装cvxpy了。我发现这个 github issue 非常有帮助。我最终安装了 Python 3.8（64 位）而不是我偶然安装的（32 位）。我安装了
(numpy+mkl, scipy, cvxopt, scs, ecos, and osqp) in that order and all from downloaded wheels except for scs which I did using pip install scs I then did pip install nose and then nosetests cvxpy and go the following output:
----------------------------------------------------------------------
Ran 0 tests in 0.000s
OK
可以找到预编译的轮子here。只需下载每一个并将其移动到您的工作目录，然后 运行 pip install filename.whl