Django-error OSError: dlopen() failed to load a library: cairo / cairo-2 / cairo-gobject-2

Question

当我做 manage.py makemigrations 出现这样的错误

PS C:\Users\User\PycharmProject\onlineshop-master> python .\manage.py makemigrations
Traceback (most recent call last):
  File "C:\Users\User\PycharmProject\onlineshop-master\manage.py", line 15, in <module>
    execute_from_command_line(sys.argv)
  File "C:\Users\User\PycharmProject\onlineshop\venv\lib\site-packages\django\core\management\__init__.py", line 381, in execute_from_command_line
    utility.execute()
  File "C:\Users\User\PycharmProject\onlineshop\venv\lib\site-packages\django\core\management\__init__.py", line 375, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "C:\Users\User\PycharmProject\onlineshop\venv\lib\site-packages\django\core\management\base.py", line 316, in run_from_argv
    self.execute(*args, **cmd_options)
  File "C:\Users\User\PycharmProject\onlineshop\venv\lib\site-packages\django\core\management\base.py", line 350, in execute
    self.check()
  File "C:\Users\User\PycharmProject\onlineshop\venv\lib\site-packages\django\core\management\base.py", line 376, in check
    all_issues = self._run_checks(
  File "C:\Users\User\PycharmProject\onlineshop\venv\lib\site-packages\django\core\management\base.py", line 366, in _run_checks
    return checks.run_checks(**kwargs)
  File "C:\Users\User\PycharmProject\onlineshop\venv\lib\site-packages\django\core\checks\registry.py", line 71, in run_checks
    new_errors = check(app_configs=app_configs)
  File "C:\Users\User\PycharmProject\onlineshop\venv\lib\site-packages\django\core\checks\urls.py", line 40, in check_url_namespaces_unique
    all_namespaces = _load_all_namespaces(resolver)
  File "C:\Users\User\PycharmProject\onlineshop\venv\lib\site-packages\django\core\checks\urls.py", line 57, in _load_all_namespaces
    url_patterns = getattr(resolver, 'url_patterns', [])
  File "C:\Users\User\PycharmProject\onlineshop\venv\lib\site-packages\django\utils\functional.py", line 37, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "C:\Users\User\PycharmProject\onlineshop\venv\lib\site-packages\django\urls\resolvers.py", line 533, in url_patterns
    patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
  File "C:\Users\User\PycharmProject\onlineshop\venv\lib\site-packages\django\utils\functional.py", line 37, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "C:\Users\User\PycharmProject\onlineshop\venv\lib\site-packages\django\urls\resolvers.py", line 526, in urlconf_module
    return import_module(self.urlconf_name)
  File "C:\Users\User\AppData\Local\Programs\Python\Python39\lib\importlib\__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
  File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 790, in exec_module
  File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
  File "C:\Users\User\PycharmProject\onlineshop-master\config\urls.py", line 24, in <module>
    path('order/', include('order.urls')),
  File "C:\Users\User\PycharmProject\onlineshop\venv\lib\site-packages\django\urls\conf.py", line 34, in include
    urlconf_module = import_module(urlconf_module)
  File "C:\Users\User\AppData\Local\Programs\Python\Python39\lib\importlib\__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
  File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 790, in exec_module
  File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
  File "C:\Users\User\PycharmProject\onlineshop-master\order\urls.py", line 2, in <module>
    from .views import *
  File "C:\Users\User\PycharmProject\onlineshop-master\order\views.py", line 36, in <module>
    import weasyprint
  File "C:\Users\User\PycharmProject\onlineshop\venv\lib\site-packages\weasyprint\__init__.py", line 393, in <module>
    from .css import preprocess_stylesheet  # noqa
  File "C:\Users\User\PycharmProject\onlineshop\venv\lib\site-packages\weasyprint\css\__init__.py", line 25, in <module>
    from . import computed_values
  File "C:\Users\User\PycharmProject\onlineshop\venv\lib\site-packages\weasyprint\css\computed_values.py", line 17, in <module>
    from .. import text
  File "C:\Users\User\PycharmProject\onlineshop\venv\lib\site-packages\weasyprint\text.py", line 14, in <module>
    import cairocffi as cairo
  File "C:\Users\User\PycharmProject\onlineshop\venv\lib\site-packages\cairocffi\__init__.py", line 41, in <module>
    cairo = dlopen(ffi, 'cairo', 'cairo-2', 'cairo-gobject-2')
  File "C:\Users\User\PycharmProject\onlineshop\venv\lib\site-packages\cairocffi\__init__.py", line 38, in dlopen
    raise OSError("dlopen() failed to load a library: %s" % ' / '.join(names))
OSError: dlopen() failed to load a library: cairo / cairo-2 / cairo-gobject-2

我想不出解决方法。 我该如何解决这个问题？ ''' 点安装 cffi ''' 已满足要求：c:\users\user\pycharmproject\onlineshop\venv\lib\site-packages (1.15.0) 中的 cffi 已满足要求：c:\users\user\pycharmproject\onlineshop\venv\lib\site-packages 中的 pycparser（来自 cffi）（2.19）

Answer 1

检查 cairocffi 包是否有问题，甚至是否正确安装。并尝试再次安装它，所以也许这些问题会得到解决。 还要检查您的数据库。就像你写 python manage.py make migrations 一样，如果你的数据库不是作为超级用户创建的，那么它会给你错误 如果您的软件包已经满意，请尝试卸载它