Getting "OSError: dlopen() failed to load a library: cairo / cairo-2" on Windows
Getting "OSError: dlopen() failed to load a library: cairo / cairo-2" on Windows
在新安装后尝试执行 Django 时出现 OSError: dlopen() failed to load a library: cairo / cairo-2。使用 Windows.
我用的是Weasyprint，从full trace来看好像跟那个有关：
Unhandled exception in thread started by <function wrapper at 0x03F605B0>
Traceback (most recent call last):
File "C:\my-venv\lib\site-packages\django\utils\autoreload.py", line 226, in wrapper
fn(*args, **kwargs)
File "C:\my-venv\lib\site-packages\django\core\management\commands\runserver.py", line 109, in inner_run
autoreload.raise_last_exception()
File "C:\my-venv\lib\site-packages\django\utils\autoreload.py", line 249, in raise_last_exception
six.reraise(*_exception)
File "C:\my-venv\lib\site-packages\django\utils\autoreload.py", line 226, in wrapper
fn(*args, **kwargs)
File "C:\my-venv\lib\site-packages\django\__init__.py", line 18, in setup
apps.populate(settings.INSTALLED_APPS)
File "C:\my-venv\lib\site-packages\django\apps\registry.py", line 115, in populate
app_config.ready()
File "C:\my-venv\lib\site-packages\debug_toolbar\apps.py", line 15, in ready
dt_settings.patch_all()
File "C:\my-venv\lib\site-packages\debug_toolbar\settings.py", line 243, in patch_all
patch_root_urlconf()
File "C:\my-venv\lib\site-packages\debug_toolbar\settings.py", line 231, in patch_root_urlconf
reverse('djdt:render_panel')
File "C:\my-venv\lib\site-packages\django\core\urlresolvers.py", line 568, in reverse
app_list = resolver.app_dict[ns]
File "C:\my-venv\lib\site-packages\django\core\urlresolvers.py", line 360, in app_dict
self._populate()
File "C:\my-venv\lib\site-packages\django\core\urlresolvers.py", line 293, in _populate
for pattern in reversed(self.url_patterns):
File "C:\my-venv\lib\site-packages\django\utils\functional.py", line 33, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "C:\my-venv\lib\site-packages\django\core\urlresolvers.py", line 417, in url_patterns
patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
File "C:\my-venv\lib\site-packages\django\utils\functional.py", line 33, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "C:\my-venv\lib\site-packages\django\core\urlresolvers.py", line 410, in urlconf_module
return import_module(self.urlconf_name)
File "C:\Python27\Lib\importlib\__init__.py", line 37, in import_module
__import__(name)
File "C:\my-project\project\urls.py", line 9, in <module>
from utils.views import site_info, nav_autocomplete
File "C:\my-project\utils\views.py", line 24, in <module>
import weasyprint
File "C:\my-venv\lib\site-packages\weasyprint\__init__.py", line 338, in <module>
from .css import PARSER, preprocess_stylesheet # noqa
File "C:\my-venv\lib\site-packages\weasyprint\css\__init__.py", line 30, in <module>
from . import computed_values
File "C:\my-venv\lib\site-packages\weasyprint\css\computed_values.py", line 18, in <module>
from .. import text
File "C:\my-venv\lib\site-packages\weasyprint\text.py", line 18, in <module>
import cairocffi as cairo
File "C:\my-venv\lib\site-packages\cairocffi\__init__.py", line 46, in <module>
cairo = dlopen(ffi, 'cairo', 'cairo-2')
File "C:\my-venv\lib\site-packages\cairocffi\__init__.py", line 43, in dlopen
raise OSError("dlopen() failed to load a library: %s" % ' / '.join(names))
OSError: dlopen() failed to load a library: cairo / cairo-2
有关要安装的 GTK+ 捆绑包的列表，请参阅 http://win32builder.gnome.org/ or http://gtk-win.sourceforge.net/home/。这些包括所需的 cairo/cairo-2 库。
- 将
bin\ 文件夹的内容提取到例如C:\Program Files (x86)\GTK2-bundle\（任何目录都可以）
- 将以上目录添加到你的PATH环境变量中
- 重新启动您的开发环境（在我的例子中 PyCharm）
我在 windows X64/Python37 上遇到了同样的问题，但我用波纹管修复了 link:
按照以下步骤操作：https://weasyprint.readthedocs.io/en/stable/install.html#windows，
（我用 MSYS Installer 安装了 gtk，并将 C:\msys64\mingw32\bin 添加到 PATH 变量，之后我出现了同样的错误，我删除了 cairocffi python 库并重新安装它）
我在 Windows 10.
收到以下错误消息：OSError: dlopen() failed to load a library: cairo / cairo-2 / cairo-gobject-2
包含上述库的GTK+库可以从以下位置获取并安装
https://github.com/tschoonj/GTK-for-Windows-Runtime-Environment-Installer, as documented on https://weasyprint.readthedocs.io/en/latest/install.html#gtk64installer.
请注意，您的开发环境需要重新启动才能读取PATH。
在新安装后尝试执行 Django 时出现 OSError: dlopen() failed to load a library: cairo / cairo-2。使用 Windows.
我用的是Weasyprint，从full trace来看好像跟那个有关：
Unhandled exception in thread started by <function wrapper at 0x03F605B0>
Traceback (most recent call last):
File "C:\my-venv\lib\site-packages\django\utils\autoreload.py", line 226, in wrapper
fn(*args, **kwargs)
File "C:\my-venv\lib\site-packages\django\core\management\commands\runserver.py", line 109, in inner_run
autoreload.raise_last_exception()
File "C:\my-venv\lib\site-packages\django\utils\autoreload.py", line 249, in raise_last_exception
six.reraise(*_exception)
File "C:\my-venv\lib\site-packages\django\utils\autoreload.py", line 226, in wrapper
fn(*args, **kwargs)
File "C:\my-venv\lib\site-packages\django\__init__.py", line 18, in setup
apps.populate(settings.INSTALLED_APPS)
File "C:\my-venv\lib\site-packages\django\apps\registry.py", line 115, in populate
app_config.ready()
File "C:\my-venv\lib\site-packages\debug_toolbar\apps.py", line 15, in ready
dt_settings.patch_all()
File "C:\my-venv\lib\site-packages\debug_toolbar\settings.py", line 243, in patch_all
patch_root_urlconf()
File "C:\my-venv\lib\site-packages\debug_toolbar\settings.py", line 231, in patch_root_urlconf
reverse('djdt:render_panel')
File "C:\my-venv\lib\site-packages\django\core\urlresolvers.py", line 568, in reverse
app_list = resolver.app_dict[ns]
File "C:\my-venv\lib\site-packages\django\core\urlresolvers.py", line 360, in app_dict
self._populate()
File "C:\my-venv\lib\site-packages\django\core\urlresolvers.py", line 293, in _populate
for pattern in reversed(self.url_patterns):
File "C:\my-venv\lib\site-packages\django\utils\functional.py", line 33, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "C:\my-venv\lib\site-packages\django\core\urlresolvers.py", line 417, in url_patterns
patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
File "C:\my-venv\lib\site-packages\django\utils\functional.py", line 33, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "C:\my-venv\lib\site-packages\django\core\urlresolvers.py", line 410, in urlconf_module
return import_module(self.urlconf_name)
File "C:\Python27\Lib\importlib\__init__.py", line 37, in import_module
__import__(name)
File "C:\my-project\project\urls.py", line 9, in <module>
from utils.views import site_info, nav_autocomplete
File "C:\my-project\utils\views.py", line 24, in <module>
import weasyprint
File "C:\my-venv\lib\site-packages\weasyprint\__init__.py", line 338, in <module>
from .css import PARSER, preprocess_stylesheet # noqa
File "C:\my-venv\lib\site-packages\weasyprint\css\__init__.py", line 30, in <module>
from . import computed_values
File "C:\my-venv\lib\site-packages\weasyprint\css\computed_values.py", line 18, in <module>
from .. import text
File "C:\my-venv\lib\site-packages\weasyprint\text.py", line 18, in <module>
import cairocffi as cairo
File "C:\my-venv\lib\site-packages\cairocffi\__init__.py", line 46, in <module>
cairo = dlopen(ffi, 'cairo', 'cairo-2')
File "C:\my-venv\lib\site-packages\cairocffi\__init__.py", line 43, in dlopen
raise OSError("dlopen() failed to load a library: %s" % ' / '.join(names))
OSError: dlopen() failed to load a library: cairo / cairo-2
有关要安装的 GTK+ 捆绑包的列表，请参阅 http://win32builder.gnome.org/ or http://gtk-win.sourceforge.net/home/。这些包括所需的 cairo/cairo-2 库。
- 将
bin\文件夹的内容提取到例如C:\Program Files (x86)\GTK2-bundle\（任何目录都可以） - 将以上目录添加到你的PATH环境变量中
- 重新启动您的开发环境（在我的例子中 PyCharm）
我在 windows X64/Python37 上遇到了同样的问题，但我用波纹管修复了 link:
按照以下步骤操作：https://weasyprint.readthedocs.io/en/stable/install.html#windows， （我用 MSYS Installer 安装了 gtk，并将 C:\msys64\mingw32\bin 添加到 PATH 变量，之后我出现了同样的错误，我删除了 cairocffi python 库并重新安装它）
我在 Windows 10.
收到以下错误消息：OSError: dlopen() failed to load a library: cairo / cairo-2 / cairo-gobject-2
包含上述库的GTK+库可以从以下位置获取并安装 https://github.com/tschoonj/GTK-for-Windows-Runtime-Environment-Installer, as documented on https://weasyprint.readthedocs.io/en/latest/install.html#gtk64installer.
请注意，您的开发环境需要重新启动才能读取PATH。