我将Django与postgres一起使用，模型中的字段之一应该是Array。当我尝试使用它时，建议我使用“ django_postgres_extensions”，以便我运行“ pip install django_postgres_extensions”，甚至将“ django_postgres_extensions”添加到INSTALLED_APPS的settings.py中。
from django_postgres_extensions.models.fields import ArrayField
from django.conf import settings
from django.db import models
class Wanted(models.Model):
firstName = models.CharField(max_length=255, null=False, blank=False, default="default")
lastName = models.CharField(max_length=255, null=False, blank=False, default="default")
encodings = ArrayField(models.IntegerField(), default=[], form_size=10, blank=True)
photo = models.ImageField(upload_to="wanted/", null=True, blank=True)
每次我运行“ python manage.py runserver”时，都会出现以下错误：
Watching for file changes with StatReloader
Exception in thread Thread-1:
Traceback (most recent call last):
File "C:\Users\Kyoko\AppData\Local\Programs\Python\Python36-32\lib\threading.py", line 916, in _bootstrap_inner
self.run()
File "C:\Users\Kyoko\AppData\Local\Programs\Python\Python36-32\lib\threading.py", line 864, in run
self._target(*self._args, **self._kwargs)
File "C:\Users\Kyoko\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\utils\autoreload.py", line 54, in wrapper
fn(*args, **kwargs)
File "C:\Users\Kyoko\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\core\management\commands\runserver.py", line 109, in inner_run
autoreload.raise_last_exception()
File "C:\Users\Kyoko\AppData\Local\Programs\Python\Python36-32\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\Kyoko\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\utils\autoreload.py", line 54, in wrapper
fn(*args, **kwargs)
File "C:\Users\Kyoko\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\__init__.py", line 24, in setup
apps.populate(settings.INSTALLED_APPS)
File "C:\Users\Kyoko\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\apps\registry.py", line 114, in populate
app_config.import_models()
File "C:\Users\Kyoko\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\apps\config.py", line 211, in import_models
self.models_module = import_module(models_module_name)
File "C:\Users\Kyoko\AppData\Local\Programs\Python\Python36-32\lib\importlib\__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 994, in _gcd_import
File "<frozen importlib._bootstrap>", line 971, in _find_and_load
File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 678, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "C:\Users\Kyoko\Desktop\KYOKO\Work\Talan\GitProject\IBCS\server\src\models\models.py", line 80, in <module>
class Wanted(models.Model):
File "C:\Users\Kyoko\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\db\models\base.py", line 156, in __new__
new_class.add_to_class(obj_name, obj)
File "C:\Users\Kyoko\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\db\models\base.py", line 321, in add_to_class
value.contribute_to_class(cls, name)
File "C:\Users\Kyoko\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\db\models\fields\__init__.py", line 733, in contribute_to_class
self.set_attributes_from_name(name)
File "C:\Users\Kyoko\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\contrib\postgres\fields\array.py", line 76, in set_attributes_from_name
self.base_field.set_attributes_from_name(name)
TypeError: set_attributes_from_name() missing 1 required positional argument: 'name'
Traceback (most recent call last):
File "C:\Users\Kyoko\AppData\Local\Programs\Python\Python36-32\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\Kyoko\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\core\management\__init__.py", line 381, in execute_from_command_line
utility.execute()
File "C:\Users\Kyoko\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\core\management\__init__.py", line 375, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "C:\Users\Kyoko\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\core\management\base.py", line 323, in run_from_argv
self.execute(*args, **cmd_options)
File "C:\Users\Kyoko\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\core\management\commands\runserver.py", line 60, in execute
super().execute(*args, **options)
File "C:\Users\Kyoko\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\core\management\base.py", line 364, in execute
output = self.handle(*args, **options)
File "C:\Users\Kyoko\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\core\management\commands\runserver.py", line 95, in handle
self.run(**options)
File "C:\Users\Kyoko\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\core\management\commands\runserver.py", line 102, in run
autoreload.run_with_reloader(self.inner_run, **options)
File "C:\Users\Kyoko\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\utils\autoreload.py", line 579, in run_with_reloader
start_django(reloader, main_func, *args, **kwargs)
File "C:\Users\Kyoko\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\utils\autoreload.py", line 564, in start_django
reloader.run(django_main_thread)
File "C:\Users\Kyoko\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\utils\autoreload.py", line 272, in run
get_resolver().urlconf_module
File "C:\Users\Kyoko\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\utils\functional.py", line 80, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "C:\Users\Kyoko\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\urls\resolvers.py", line 564, in urlconf_module
return import_module(self.urlconf_name)
File "C:\Users\Kyoko\AppData\Local\Programs\Python\Python36-32\lib\importlib\__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 994, in _gcd_import
File "<frozen importlib._bootstrap>", line 971, in _find_and_load
File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 678, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "C:\Users\Kyoko\Desktop\KYOKO\Work\Talan\GitProject\IBCS\server\src\IBCS\urls.py", line 7, in <module>
path('admin/', admin.site.urls),
File "C:\Users\Kyoko\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\utils\functional.py", line 256, in inner
self._setup()
File "C:\Users\Kyoko\AppData\Local\Programs\Python\Python36-32\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\Kyoko\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\apps\registry.py", line 162, in get_app_config
raise LookupError(message)
LookupError: No installed app with label 'admin'.
编辑：INSTALLED_APPS：
INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'django.contrib.postgres',
'django_postgres_extensions',
'rest_framework',
'corsheaders',
'models',
'identity',
'agents',
'admincp',
]