Python LookupError:未安装标签为'；管理员'；。当我试着用Django运行程序时

我试图在我的计算机上运行python程序，我使用的命令是 py-3 manage.py runserver， 但是我遇到了一个错误，我在网上找不到任何有帮助的帖子来解决这个问题

Python版本是Python 3.7.3 Django版本是2.2

以下是错误消息：

Exception in thread Thread-1:
Traceback (most recent call last):
  File "C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\threading.py", line 917, in _bootstrap_inner
    self.run()
  File "C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\threading.py", line 865, in run
    self._target(*self._args, **self._kwargs)
  File "C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\site-packages\django\utils\autoreload.py", line 54, in wrapper
    fn(*args, **kwargs)
  File "C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\site-packages\django\core\management\commands\runserver.py", line 109, in inner_run
    autoreload.raise_last_exception()
  File "C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\site-packages\django\utils\autoreload.py", line 77, in raise_last_exception
    raise _exception[0](_exception[1]).with_traceback(_exception[2])
  File "C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\site-packages\django\utils\autoreload.py", line 54, in wrapper
    fn(*args, **kwargs)
  File "C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\site-packages\django\__init__.py", line 24, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\site-packages\django\apps\registry.py", line 114, in populate
    app_config.import_models()
  File "C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\site-packages\django\apps\config.py", line 211, in import_models
    self.models_module = import_module(models_module_name)
  File "C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\importlib\__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 728, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "C:\Users\Thomas\Desktop\Intern\Diversity_Policy_Site\blog\models.py", line 4, in <module>
    from .search import PolicyIndex
  File "C:\Users\Thomas\Desktop\Intern\Diversity_Policy_Site\blog\search.py", line 14, in <module>
    connections.create_connection(hosts=["https://dd90577b842c4f9396ca1846612e98df.us-east-1.aws.found.io:9243"], http_auth=('elastic', 'Mq2jdfPLSRG1m8qxp4vd0qNa'))
  File "C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\site-packages\elasticsearch_dsl\connections.py", line 66, in create_connection
    conn = self._conns[alias] = Elasticsearch(**kwargs)
  File "C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\site-packages\elasticsearch\client\__init__.py", line 206, in __init__
    self.transport = transport_class(_normalize_hosts(hosts), **kwargs)
  File "C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\site-packages\elasticsearch\transport.py", line 108, in __init__
    self.set_connections(hosts)
  File "C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\site-packages\elasticsearch\transport.py", line 157, in set_connections
    connections = list(zip(connections, hosts))
  File "C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\site-packages\elasticsearch\transport.py", line 154, in _create_connection
    return self.connection_class(**kwargs)
  File "C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\site-packages\elasticsearch\connection\http_urllib3.py", line 161, in __init__
    "Root certificates are missing for certificate "
elasticsearch.exceptions.ImproperlyConfigured: Root certificates are missing for certificate validation. Either pass them in using the ca_certs parameter or install certifi to use it automatically.

Traceback (most recent call last):
  File "C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\site-packages\django\apps\registry.py", line 155, in get_app_config
    return self.app_configs[app_label]
KeyError: 'admin'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "manage.py", line 15, in <module>
    execute_from_command_line(sys.argv)
  File "C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\site-packages\django\core\management\__init__.py", line 381, in execute_from_command_line
    utility.execute()
  File "C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\site-packages\django\core\management\__init__.py", line 375, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\site-packages\django\core\management\base.py", line 323, in run_from_argv
    self.execute(*args, **cmd_options)
  File "C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\site-packages\django\core\management\commands\runserver.py", line 60, in execute
    super().execute(*args, **options)
  File "C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\site-packages\django\core\management\base.py", line 364, in execute
    output = self.handle(*args, **options)
  File "C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\site-packages\django\core\management\commands\runserver.py", line 95, in handle
    self.run(**options)
  File "C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\site-packages\django\core\management\commands\runserver.py", line 102, in run
    autoreload.run_with_reloader(self.inner_run, **options)
  File "C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\site-packages\django\utils\autoreload.py", line 579, in run_with_reloader
    start_django(reloader, main_func, *args, **kwargs)
  File "C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\site-packages\django\utils\autoreload.py", line 564, in start_django
    reloader.run(django_main_thread)
  File "C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\site-packages\django\utils\autoreload.py", line 272, in run
    get_resolver().urlconf_module
  File "C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\site-packages\django\utils\functional.py", line 80, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\site-packages\django\urls\resolvers.py", line 564, in urlconf_module
    return import_module(self.urlconf_name)
  File "C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\importlib\__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 728, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "C:\Users\Thomas\Desktop\Intern\Diversity_Policy_Site\mysite\urls.py", line 22, in <module>
    path('admin/', admin.site.urls),
  File "C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\site-packages\django\utils\functional.py", line 256, in inner
    self._setup()
  File "C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\site-packages\django\contrib\admin\sites.py", line 529, in _setup
    AdminSiteClass = import_string(apps.get_app_config('admin').default_site)
  File "C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\site-packages\django\apps\registry.py", line 162, in get_app_config
    raise LookupError(message)
LookupError: No installed app with label 'admin'.

线程1中的异常： 回溯（最近一次呼叫最后一次）： 文件“C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\threading.py”，第917行，在\u bootstrap\u inner中 self.run（） 文件“C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\threading.py”，第865行，正在运行 自我目标（*自我参数，**自我参数） 文件“C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\site packages\django\utils\autoreload.py”，包装器中的第54行 fn（*args，**kwargs） 文件“C:\Users\Thomas\AppData\Local\Programs\Python\37\lib\site packages\django\core\management\commands\runserver.py”，第109行，在内部运行 autoreload.raise\u last\u异常（） 文件“C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\site packages\django\utils\autoreload.py”，第77行，在raise\u last\u异常中 引发异常[0]（\u异常[1]）。并进行跟踪（\u异常[2]） 文件“C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\site packages\django\utils\autoreload.py”，包装器中的第54行 fn（*args，**kwargs） 文件“C:\Users\Thomas\AppData\Local\Programs\Python\37\lib\site packages\django\\uuuuuu init\uuuuuu.py”，第24行，在安装程序中 应用程序。填充（设置。已安装的应用程序） 文件“C:\Users\Thomas\AppData\Local\Programs\Python\37\lib\site packages\django\apps\registry.py”，第114行，填充 app_config.import_models（） 文件“C:\Users\Thomas\AppData\Local\Programs\Python\37\lib\site packages\django\apps\config.py”，第211行，在import\u模型中 self.models\u module=导入模块（models\u module\u name） 文件“C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\importlib\ \uuuuuu init\uuuuuu.py”，第127行，在导入模块中 return _bootstrap._gcd_import（名称[级别：]，包，级别） 文件“”，第1006行，在\u gcd\u导入中 文件“”，第983行，在_find_和_load中 文件“”，第967行，在“查找”和“加载”中解锁 文件“”，第677行，在\u加载\u解锁 exec_模块中第728行的文件“” 文件“”，第219行，在“调用”中，删除了“帧” 文件“C:\Users\Thomas\Desktop\Intern\Diversity\u Policy\u Site\blog\models.py”，第4行，在 from.search导入策略索引 文件“C:\Users\Thomas\Desktop\Intern\Diversity\u Policy\u Site\blog\search.py”，第14行，在 连接。创建_连接（主机=[”https://dd90577b842c4f9396ca1846612e98df.us-east-1.aws.found.io:9243“]，http_auth=（'elastic'，'Mq2jdfPLSRG1m8qxp4vd0qNa'）） 文件“C:\Users\Thomas\AppData\Local\Programs\Python37\lib\site packages\elasticsearch\u dsl\connections.py”，第66行，在create\u connection中 连接=自身。_连接[别名]=Elasticsearch（**kwargs） 文件“C:\Users\Thomas\AppData\Local\Programs\Python\37\lib\site packages\elasticsearch\client\\uuuu init\uuu.py”，第206行，在\uu init中__ self.transport=传输类（_规范化_主机，**kwargs） 文件“C:\Users\Thomas\AppData\Local\Programs\Python\37\lib\site packages\elasticsearch\transport.py”，第108行，在uu init中__ self.set_连接（主机） 文件“C:\Users\Thomas\AppData\Local\Programs\Python\37\lib\site packages\elasticsearch\transport.py”，第157行，在set\u connections中 连接=列表（zip（连接、主机）） 文件“C:\Users\Thomas\AppData\Local\Programs\Python\37\lib\site packages\elasticsearch\transport.py”，第154行，位于创建连接中 返回自连接类（**kwargs） 文件“C:\Users\Thomas\AppData\Local\Programs\Python\37\lib\site packages\elasticsearch\connection\http\u urllib3.py”，第161行，在\uuu init中__ “证书缺少根证书” elasticsearch.exceptions.ImpropertlyConfigured:缺少用于证书验证的根证书。使用ca_certs参数将其传入，或安装certifi以自动使用它。 回溯（最近一次呼叫最后一次）： 文件“C:\Users\Thomas\AppData\Local\Programs\Python\37\lib\site packages\django\apps\registry.py”，第155行，在get\u app\u config中 返回self.app\u配置[app\u标签] KeyError:'管理员' 在处理上述异常期间，发生了另一个异常： 回溯（最近一次呼叫最后一次）： 文件“manage.py”，第15行，在 从命令行（sys.argv）执行命令 文件“C:\Users\Thomas\AppData\Local\Programs\Python\37\lib\site packages\django\core\management\ \uuuuuuu init\uuuuuuu.py”，第381行，从命令行执行 utility.execute（） 文件“C:\Users\Thomas\AppData\Local\Programs\Python\37\lib\site packages\django\core\management\\uuu init\uuu.py”，第375行，在execute中 self.fetch_命令（子命令）。从_argv（self.argv）运行_ 文件“C:\Users\Thomas\AppData\Local\Programs\Python\37\lib\site packages\django\core\management\base.py”，第323行，从\u argv运行 self.execute（*args，**cmd_选项） 文件“C:\Users\Thomas\AppData\Local\Programs\Python\37\lib\site packages\django\core\management\commands\runserver.py”，执行中第60行 super（）.execute（*args，**选项） 文件“C:\Users\Thomas\AppData\Local\Programs\Python\37\lib\site packages\django\core\management\base.py”，执行中第364行 输出=self.handle（*args，**选项） 文件“C:\Users\Thomas\AppData\Local\Programs\Python\37\lib\site packages\django\core\management\commands\runserver.py”，第95行，在handle中 self.run（**选项） 文件“C:\Users\Thomas\AppData\Local\Programs\Python\37\lib\site packages\django\core\management\commands\runserver.py”，第102行，处于运行状态 自动加载。使用重新加载程序运行（self.internal运行，**选项） 文件“C:\Users\Thomas\AppData\Local\Programs\Python\Python37\lib\site packages\django\utils\autoreload.py”，第579行，运行时使用\u重载器 start_django（重新装载机，马萨诸塞州）

pip install certifi