Python 运行时错误：模型类django_messages.models.Message不'；不要声明明确的应用程序标签和isn'；t在已安装的应用程序中的应用程序中_Python_Django_Git_Django Messages

Python 运行时错误：模型类django_messages.models.Message不'；不要声明明确的应用程序标签和isn'；t在已安装的应用程序中的应用程序中

python django git

Python 运行时错误：模型类django_messages.models.Message不'；不要声明明确的应用程序标签和isn'；t在已安装的应用程序中的应用程序中,python,django,git,django-messages,Python,Django,Git,Django Messages,我正在尝试使用我的信息包，并尝试了以下方法 pip install git+https://github.com/arneb/django-messages.git INSTALLED_APPS = [ 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messag

我正在尝试使用我的信息包，并尝试了以下方法

pip install git+https://github.com/arneb/django-messages.git

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'django.contrib.sites',
    'rest_framework',
    'rest_framework.authtoken',
    'oauth2_provider',
    'api',
    'localflavor',
    'django_localflavor_us',
    'django_countries',
    'haystack',
    'django_messages',

]

urlpatterns = [
    url(r'^admin/', admin.site.urls),
    url(r'^messages/', include('django_messages.urls')),
]

当我运行

python manage.py runserver

时，我得到了以下错误：

Unhandled exception in thread started by <function wrapper at 0x107cedaa0>
Traceback (most recent call last):
  File "/Users/shivakrishna/.virtualenvs/project /lib/python2.7/site-packages/django/utils/autoreload.py", line 226, in wrapper
    fn(*args, **kwargs)
  File "/Users/shivakrishna/.virtualenvs/project /lib/python2.7/site-packages/django/core/management/commands/runserver.py", line 121, in inner_run
    self.check(display_num_errors=True)
  File "/Users/shivakrishna/.virtualenvs/project /lib/python2.7/site-packages/django/core/management/base.py", line 374, in check
    include_deployment_checks=include_deployment_checks,
  File "/Users/shivakrishna/.virtualenvs/project /lib/python2.7/site-packages/django/core/management/base.py", line 361, in _run_checks
    return checks.run_checks(**kwargs)
  File "/Users/shivakrishna/.virtualenvs/project /lib/python2.7/site-packages/django/core/checks/registry.py", line 81, in run_checks
    new_errors = check(app_configs=app_configs)
  File "/Users/shivakrishna/.virtualenvs/project /lib/python2.7/site-packages/django/core/checks/urls.py", line 14, in check_url_config
    return check_resolver(resolver)
  File "/Users/shivakrishna/.virtualenvs/project /lib/python2.7/site-packages/django/core/checks/urls.py", line 24, in check_resolver
    for pattern in resolver.url_patterns:
  File "/Users/shivakrishna/.virtualenvs/project /lib/python2.7/site-packages/django/utils/functional.py", line 35, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "/Users/shivakrishna/.virtualenvs/project /lib/python2.7/site-packages/django/urls/resolvers.py", line 313, in url_patterns
    patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
  File "/Users/shivakrishna/.virtualenvs/project /lib/python2.7/site-packages/django/utils/functional.py", line 35, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "/Users/shivakrishna/.virtualenvs/project /lib/python2.7/site-packages/django/urls/resolvers.py", line 306, in urlconf_module
    return import_module(self.urlconf_name)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/importlib/__init__.py", line 37, in import_module
    __import__(name)
  File "/Users/shivakrishna/shiva/Office_projects/iPitch/project /project /urls.py", line 23, in <module>
    url(r'^messages/', include('django_messages.urls')),
  File "/Users/shivakrishna/.virtualenvs/project /lib/python2.7/site-packages/django/conf/urls/__init__.py", line 50, in include
    urlconf_module = import_module(urlconf_module)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/importlib/__init__.py", line 37, in import_module
    __import__(name)
  File "/Users/shivakrishna/.virtualenvs/project /lib/python2.7/site-packages/django_messages/urls.py", line 4, in <module>
    from django_messages.views import *
  File "/Users/shivakrishna/.virtualenvs/project /lib/python2.7/site-packages/django_messages/views.py", line 11, in <module>
    from django_messages.models import Message
  File "/Users/shivakrishna/.virtualenvs/project /lib/python2.7/site-packages/django_messages/models.py", line 48, in <module>
    class Message(models.Model):
  File "/Users/shivakrishna/.virtualenvs/project /lib/python2.7/site-packages/django/db/models/base.py", line 113, in __new__
    "INSTALLED_APPS." % (module, name)
RuntimeError: Model class django_messages.models.Message doesn't declare an explicit app_label and isn't in an application in INSTALLED_APPS.

由启动的线程中未处理的异常回溯（最近一次呼叫最后一次）：包装器中的文件“/Users/shivakrishna/.virtualenvs/project/lib/python2.7/site packages/django/utils/autoreload.py”，第226行 fn（*args，**kwargs）文件“/Users/shivakrishna/.virtualenvs/project/lib/python2.7/site packages/django/core/management/commands/runserver.py”，第121行，在内部运行 self.check（display\u num\u errors=True）文件“/Users/shivakrishna/.virtualenvs/project/lib/python2.7/site packages/django/core/management/base.py”，第374行，选中包括部署检查=包括部署检查，文件“/Users/shivakrishna/.virtualenvs/project/lib/python2.7/site packages/django/core/management/base.py”，第361行，在运行检查中返回检查。运行检查（**kwargs）文件“/Users/shivakrishna/.virtualenvs/project/lib/python2.7/site packages/django/core/checks/registry.py”，第81行，运行检查新建错误=检查（应用程序配置=应用程序配置）文件“/Users/shivakrishna/.virtualenvs/project/lib/python2.7/site packages/django/core/checks/url.py”，第14行，在check\u url\u配置中返回检查\u分解器（分解器）文件“/Users/shivakrishna/.virtualenvs/project/lib/python2.7/site packages/django/core/checks/url.py”，第24行，在check\u解析器中对于resolver.url\u模式中的模式：文件“/Users/shivakrishna/.virtualenvs/project/lib/python2.7/site packages/django/utils/functional.py”，第35行，在__ res=instance.\uuuu dict\uuuu[self.name]=self.func（实例）文件“/Users/shivakrishna/.virtualenvs/project/lib/python2.7/site packages/django/url/resolvers.py”，第313行，url_模式 patterns=getattr（self.urlconf_模块，“urlpatterns”，self.urlconf_模块）文件“/Users/shivakrishna/.virtualenvs/project/lib/python2.7/site packages/django/utils/functional.py”，第35行，在__ res=instance.\uuuu dict\uuuu[self.name]=self.func（实例）文件“/Users/shivakrishna/.virtualenvs/project/lib/python2.7/site packages/django/url/resolvers.py”，urlconf_模块第306行返回导入_模块（self.urlconf_名称）文件“/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/importlib/_init__.py”，第37行，在导入模块中 __导入（名称）文件“/Users/shivakrishna/shiva/Office_projects/iPitch/project/project/url.py”，第23行，在 url（r“^messages/”，包括（'django_messages.url'），文件“/Users/shivakrishna/.virtualenvs/project/lib/python2.7/site packages/django/conf/url/_init__.py”，第50行，包括 urlconf_模块=导入_模块（urlconf_模块）文件“/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/importlib/_init__.py”，第37行，在导入模块中 __导入（名称）文件“/Users/shivakrishna/.virtualenvs/project/lib/python2.7/site packages/django_messages/url.py”，第4行，在从django_messages.views导入* 文件“/Users/shivakrishna/.virtualenvs/project/lib/python2.7/site packages/django_messages/views.py”，第11行，在从django_messages.models导入消息文件“/Users/shivakrishna/.virtualenvs/project/lib/python2.7/site packages/django_messages/models.py”，第48行，在类消息（models.Model）：文件“/Users/shivakrishna/.virtualenvs/project/lib/python2.7/site packages/django/db/models/base.py”，第113行，新__ “已安装的应用程序”。%（模块，名称）运行时错误：模型类django_messages.models.Message未声明明确的应用程序_标签，并且不在已安装的应用程序中。

我能知道错误发生的原因和解决方法吗？

如以下问题的答案所述：

您得到的错误与在应用程序初始化模型之前使用模型有关

您在注释中声明未使用初始化时执行的信号，因此搜索：

在初始化和使用模型或

django消息

models时调用的任何方法。如果有，请尝试将这些方法调用放在

app.py

中的

MyAppConfig

类中

如果执行中有任何相对路径，请将其更改为精确的模块路径：

from .models import MyModel
from .messages import *

to

from apps.myapp.models import MyModel
django.messages import *

在你的应用圈开始时，你是否有任何使用你的消息模型的信号？这也是一个愚蠢的问题，但在安装的应用程序中放置

django消息后是否迁移了？不，我没有任何信号，我只是将其放置在安装的应用程序中并运行python manage.py runserver
，即使在尝试运行python manage.py migrate
时，我也会遇到同样的错误，不知道您为什么发布了整个已安装应用程序部分？你的应用程序的名称是什么？它在哪里？我已经粘贴了整个已安装的应用程序部分