OSError: Version mismatch while installing h2o?

Question

我是 H2o 的新手。基于 documentation 我为 python

安装了 H2o

$ pip install h2o

然后：

在：

import h2o
h2o.init()

输出：

OSError                                   Traceback (most recent call last)
<ipython-input-1-07f8bb8f27db> in <module>()
      1 import h2o
----> 2 h2o.init()

/usr/local/lib/python3.5/site-packages/h2o/h2o.py in init(ip, port, start_h2o, enable_assertions, license, nthreads, max_mem_size, min_mem_size, ice_root, strict_version_check, proxy, https, insecure, username, password, max_mem_size_GB, min_mem_size_GB, proxies, size)
    849                 nthreads=nthreads,max_mem_size=max_mem_size,min_mem_size=min_mem_size,ice_root=ice_root,
    850                 strict_version_check=strict_version_check,proxy=proxy,https=https,insecure=insecure,username=username,
--> 851                 password=password,max_mem_size_GB=max_mem_size_GB,min_mem_size_GB=min_mem_size_GB,proxies=proxies,size=size)
    852   return None
    853 

/usr/local/lib/python3.5/site-packages/h2o/connection.py in __init__(self, ip, port, start_h2o, enable_assertions, license, nthreads, max_mem_size, min_mem_size, ice_root, strict_version_check, proxy, https, insecure, username, password, max_mem_size_GB, min_mem_size_GB, proxies, size)
    173           raise EnvironmentError("Version mismatch. H2O is version {0}, but the h2o-python package is version {1}. "
    174                                  "This is a developer build, please contact your developer."
--> 175                                  "".format(ver_h2o, str(ver_pkg)))
    176         else:
    177           raise EnvironmentError("Version mismatch. H2O is version {0}, but the h2o-python package is version {1}. "

OSError: Version mismatch. H2O is version 3.8.2.99999, but the h2o-python package is version 3.8.2.6-1. This is a developer build, please contact your developer.

据此website，我尝试按如下方式解决此问题：

h2o.shutdown

然后：

user@MacBook-Pro-of-User:~$ pip3 uninstall h2o
Uninstalling h2o-3.8.2.6-1:
  /usr/local/h2o_data/iris.csv
  /usr/local/h2o_data/prostate.csv
  /usr/local/h2o_jar/h2o.jar
  /usr/local/lib/python3.5/site-packages/h2o-3.8.2.6_1.dist-info/DESCRIPTION.rst
  /usr/local/lib/python3.5/site-packages/h2o-3.8.2.6_1.dist-info/INSTALLER
  /usr/local/lib/python3.5/site-packages/h2o-3.8.2.6_1.dist-info/METADATA
  /usr/local/lib/python3.5/site-packages/h2o-3.8.2.6_1.dist-info/RECORD
  /usr/local/lib/python3.5/site-packages/h2o-3.8.2.6_1.dist-info/WHEEL
  /usr/local/lib/python3.5/site-packages/h2o-3.8.2.6_1.dist-info/metadata.json
  /usr/local/lib/python3.5/site-packages/h2o-3.8.2.6_1.dist-info/top_level.txt
  /usr/local/lib/python3.5/site-packages/h2o/__init__.py
  /usr/local/lib/python3.5/site-packages/h2o/__pycache__/__init__.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/__pycache__/assembly.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/__pycache__/astfun.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/__pycache__/connection.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/__pycache__/cross_validation.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/__pycache__/demo.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/__pycache__/display.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/__pycache__/expr.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/__pycache__/frame.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/__pycache__/group_by.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/__pycache__/h2o.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/__pycache__/h2o_logging.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/__pycache__/job.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/__pycache__/two_dim_table.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/assembly.py
  /usr/local/lib/python3.5/site-packages/h2o/astfun.py
  /usr/local/lib/python3.5/site-packages/h2o/connection.py
  /usr/local/lib/python3.5/site-packages/h2o/cross_validation.py
  /usr/local/lib/python3.5/site-packages/h2o/demo.py
  /usr/local/lib/python3.5/site-packages/h2o/display.py
  /usr/local/lib/python3.5/site-packages/h2o/estimators/__init__.py
  /usr/local/lib/python3.5/site-packages/h2o/estimators/__pycache__/__init__.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/estimators/__pycache__/deeplearning.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/estimators/__pycache__/estimator_base.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/estimators/__pycache__/gbm.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/estimators/__pycache__/glm.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/estimators/__pycache__/glrm.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/estimators/__pycache__/kmeans.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/estimators/__pycache__/naive_bayes.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/estimators/__pycache__/random_forest.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/estimators/deeplearning.py
  /usr/local/lib/python3.5/site-packages/h2o/estimators/estimator_base.py
  /usr/local/lib/python3.5/site-packages/h2o/estimators/gbm.py
  /usr/local/lib/python3.5/site-packages/h2o/estimators/glm.py
  /usr/local/lib/python3.5/site-packages/h2o/estimators/glrm.py
  /usr/local/lib/python3.5/site-packages/h2o/estimators/kmeans.py
  /usr/local/lib/python3.5/site-packages/h2o/estimators/naive_bayes.py
  /usr/local/lib/python3.5/site-packages/h2o/estimators/random_forest.py
  /usr/local/lib/python3.5/site-packages/h2o/expr.py
  /usr/local/lib/python3.5/site-packages/h2o/frame.py
  /usr/local/lib/python3.5/site-packages/h2o/grid/__init__.py
  /usr/local/lib/python3.5/site-packages/h2o/grid/__pycache__/__init__.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/grid/__pycache__/grid_search.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/grid/__pycache__/metrics.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/grid/grid_search.py
  /usr/local/lib/python3.5/site-packages/h2o/grid/metrics.py
  /usr/local/lib/python3.5/site-packages/h2o/group_by.py
  /usr/local/lib/python3.5/site-packages/h2o/h2o.py
  /usr/local/lib/python3.5/site-packages/h2o/h2o_logging.py
  /usr/local/lib/python3.5/site-packages/h2o/job.py
  /usr/local/lib/python3.5/site-packages/h2o/model/__init__.py
  /usr/local/lib/python3.5/site-packages/h2o/model/__pycache__/__init__.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/model/__pycache__/autoencoder.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/model/__pycache__/binomial.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/model/__pycache__/clustering.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/model/__pycache__/confusion_matrix.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/model/__pycache__/dim_reduction.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/model/__pycache__/metrics_base.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/model/__pycache__/model_base.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/model/__pycache__/model_builder.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/model/__pycache__/model_future.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/model/__pycache__/multinomial.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/model/__pycache__/regression.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/model/autoencoder.py
  /usr/local/lib/python3.5/site-packages/h2o/model/binomial.py
  /usr/local/lib/python3.5/site-packages/h2o/model/clustering.py
  /usr/local/lib/python3.5/site-packages/h2o/model/confusion_matrix.py
  /usr/local/lib/python3.5/site-packages/h2o/model/dim_reduction.py
  /usr/local/lib/python3.5/site-packages/h2o/model/metrics_base.py
  /usr/local/lib/python3.5/site-packages/h2o/model/model_base.py
  /usr/local/lib/python3.5/site-packages/h2o/model/model_builder.py
  /usr/local/lib/python3.5/site-packages/h2o/model/model_future.py
  /usr/local/lib/python3.5/site-packages/h2o/model/multinomial.py
  /usr/local/lib/python3.5/site-packages/h2o/model/regression.py
  /usr/local/lib/python3.5/site-packages/h2o/transforms/__init__.py
  /usr/local/lib/python3.5/site-packages/h2o/transforms/__pycache__/__init__.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/transforms/__pycache__/decomposition.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/transforms/__pycache__/preprocessing.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/transforms/__pycache__/transform_base.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/transforms/decomposition.py
  /usr/local/lib/python3.5/site-packages/h2o/transforms/preprocessing.py
  /usr/local/lib/python3.5/site-packages/h2o/transforms/transform_base.py
  /usr/local/lib/python3.5/site-packages/h2o/two_dim_table.py
  /usr/local/lib/python3.5/site-packages/h2o/utils/__init__.py
  /usr/local/lib/python3.5/site-packages/h2o/utils/__pycache__/__init__.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/utils/__pycache__/shared_utils.cpython-35.pyc
  /usr/local/lib/python3.5/site-packages/h2o/utils/shared_utils.py
Proceed (y/n)? y
  Successfully uninstalled h2o-3.8.2.6-1
user@MacBook-Pro-of-User:~$

然后我尝试升级到最新版本：

user@MacBook-Pro-of-User:~$ pip3 install http://h2o-release.s3.amazonaws.com/h2o/rel-turchin/6/Python/h2o-3.8.2.6-py2.py3-none-any.whl

但是，我得到了同样的错误信息：

OSError: Version mismatch. H2O is version 3.8.2.99999, but the h2o-python package is version 3.8.2.6. This is a developer build, please contact your developer.

如何为 python 正确安装 h2o？

Answer 1

In order to use H2O, need to update the h20 jar file to python version.

删除磁盘上的 H20 版本并进行全新安装。然后 pip install h20.

或按照以下说明操作：

http://www.h2o.ai/download/h2o/python

Answer 2

首先使用最新版本的 H2O 再试一次：

pip3 uninstall h2o
pip3 install http://h2o-release.s3.amazonaws.com/h2o/rel-turchin/9/Python/h2o-3.8.2.9-py2.py3-none-any.whl

如果您运行遇到同样的问题，请执行以下操作：

您的计算机上似乎已经安装了 H2O 运行ning 的开发版本 (3.8.2.99999)。您将需要终止正在运行开发版本的 H2O 集群。您可以通过以下方式之一执行此操作：

导航到 H2O Flow Web GUI（如果您在本地运行，默认情况下会在 localhost:54321）。在 GUI 中，单击 Admin 菜单项，然后单击 "Shut Down."
终止正在运行连接 H2O 集群的 Java 进程。

杀掉现有的H2O集群后，重新安装h2o模块，直接从Python启动H2O集群，如下：

import h2o
h2o.init()

因为在这一点上，不会有一个现有的 H2O 集群运行ning，h2o Python 模块将为您启动一个（并且因为您是从 Python，不会混淆版本）。

有时会发生这样的情况，人们单独下载H2O jar 文件，启动H2O 集群，然后安装不同版本的R 或Python 包，这会导致不匹配错误。我认为这可能是您问题的原因。通常启动一个 H2O 集群就像 import h2o; h2o.init().

一样简单

Answer 3

如果您打开了 h2o window @ http://localhost:54321 ，请确保在导入 python 或 python 之前将其关闭（管理->关闭） 3 因为他们制造冲突。

Answer 4

默认情况下，H2O 对版本不匹配的情况非常宽容。

要解决此问题，您可以试试这个（不保证有效！）：

 h2o.init(
    strict_version_check=False
)

Answer 5

尝试使用非默认端口号。例如：h2o.init(port=8888)

此错误可能是由于连接到已经运行ning 的 H2O 服务器版本错误所致。当您运行 h2o.init() 它首先检查现有服务器运行ning 在默认端口 54321 上。如果您系统上的另一个用户正在运行ning 不同的 H2O 版本该端口，它将连接并抛出版本冲突。

OSError: Version mismatch while installing h2o?

OSError: Version mismatch while installing h2o?

python

machine-learning

python-3.x

h2o