python manage.py createsuperuser运行错误问题解决
作者：IT小辉同学
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python manage.py createsuperuser运行错误
错误复现
PS D:\教学文件\Django\djangoProject\webDemo02> python manage.py createsuperuser
System check identified some issues:
WARNINGS:
?: (urls.W005) URL namespace 'admin' isn't unique. You may not be able to reverse all URLs in this namespace
You have 18 unapplied migration(s). Your project may not work properly until you apply the migrations for app(s): admin, auth, contenttypes, sessions.
Run 'python manage.py migrate' to apply them.
Traceback (most recent call last):
File "C:\Users\ASUS\AppData\Local\Programs\Python\Python311\Lib\site-packages\django\db\backends\utils.py", line 89, in _execute
return self.cursor.execute(sql, params)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\ASUS\AppData\Local\Programs\Python\Python311\Lib\site-packages\django\db\backends\sqlite3\base.py", line 328, in execute
return super().execute(query, params)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
sqlite3.OperationalError: no such table: auth_user
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "D:\教学文件\Django\djangoProject\webDemo02\manage.py", line 22, in <module>
main()
File "D:\教学文件\Django\djangoProject\webDemo02\manage.py", line 18, in main
execute_from_command_line(sys.argv)
File "C:\Users\ASUS\AppData\Local\Programs\Python\Python311\Lib\site-packages\django\core\management\__init__.py", line 442, in execute_from_command_line
utility.execute()
File "C:\Users\ASUS\AppData\Local\Programs\Python\Python311\Lib\site-packages\django\core\management\__init__.py", line 436, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "C:\Users\ASUS\AppData\Local\Programs\Python\Python311\Lib\site-packages\django\core\management\base.py", line 412, in run_from_argv
self.execute(*args, **cmd_options)
File "C:\Users\ASUS\AppData\Local\Programs\Python\Python311\Lib\site-packages\django\contrib\auth\management\commands\createsuperuser.py", line 88, in execute
return super().execute(*args, **options)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\ASUS\AppData\Local\Programs\Python\Python311\Lib\site-packages\django\core\management\base.py", line 458, in execute
output = self.handle(*args, **options)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\ASUS\AppData\Local\Programs\Python\Python311\Lib\site-packages\django\contrib\auth\management\commands\createsuperuser.py", line 109, in handle
default_username = get_default_username(database=database)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\ASUS\AppData\Local\Programs\Python\Python311\Lib\site-packages\django\contrib\auth\management\__init__.py", line 168, in get_default_username
auth_app.User._default_manager.db_manager(database).get(
File "C:\Users\ASUS\AppData\Local\Programs\Python\Python311\Lib\site-packages\django\db\models\manager.py", line 87, in manager_method
return getattr(self.get_queryset(), name)(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\ASUS\AppData\Local\Programs\Python\Python311\Lib\site-packages\django\db\models\query.py", line 633, in get
num = len(clone)
^^^^^^^^^^
File "C:\Users\ASUS\AppData\Local\Programs\Python\Python311\Lib\site-packages\django\db\models\query.py", line 380, in __len__
self._fetch_all()
File "C:\Users\ASUS\AppData\Local\Programs\Python\Python311\Lib\site-packages\django\db\models\query.py", line 1881, in _fetch_all
self._result_cache = list(self._iterable_class(self))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\ASUS\AppData\Local\Programs\Python\Python311\Lib\site-packages\django\db\models\query.py", line 91, in __iter__
results = compiler.execute_sql(
^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\ASUS\AppData\Local\Programs\Python\Python311\Lib\site-packages\django\db\models\sql\compiler.py", line 1562, in execute_sql
cursor.execute(sql, params)
File "C:\Users\ASUS\AppData\Local\Programs\Python\Python311\Lib\site-packages\django\db\backends\utils.py", line 102, in execute
return super().execute(sql, params)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\ASUS\AppData\Local\Programs\Python\Python311\Lib\site-packages\django\db\backends\utils.py", line 67, in execute
return self._execute_with_wrappers(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\ASUS\AppData\Local\Programs\Python\Python311\Lib\site-packages\django\db\backends\utils.py", line 80, in _execute_with_wrappers
return executor(sql, params, many, context)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
with self.db.wrap_database_errors:
File "C:\Users\ASUS\AppData\Local\Programs\Python\Python311\Lib\site-packages\django\db\utils.py", line 91, in __exit__
raise dj_exc_value.with_traceback(traceback) from exc_value
File "C:\Users\ASUS\AppData\Local\Programs\Python\Python311\Lib\site-packages\django\db\backends\utils.py", line 89, in _execute
return self.cursor.execute(sql, params)
File "C:\Users\ASUS\AppData\Local\Programs\Python\Python311\Lib\site-packages\django\db\backends\sqlite3\base.py", line 328, in execute
return super().execute(query, params)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
django.db.utils.OperationalError: no such table: auth_user
错误解析
这个错误消息表明Django在执行python manage.py createsuperuser命令时无法找到auth_user表，通常是因为数据库尚未初始化或者数据库迁移（migrations）尚未完成。要解决这个问题，您可以按照以下步骤操作：
1.确保您已经在项目目录中运行了以下命令以应用数据库迁移：
python manage.py makemigrations python manage.py migrate
这将创建数据库表并将其初始化，包括auth_user表。
2.如果您之前已经执行了上述命令，但仍然遇到问题，可能是数据库出现了一些问题。您可以尝试删除数据库并重新创建它，然后再次运行迁移命令：
rm db.sqlite3 # 删除数据库文件 python manage.py makemigrations python manage.py migrate
3.如果您在项目中使用的是不同的数据库引擎（例如MySQL或PostgreSQL），请确保数据库服务器正在运行，并且数据库配置正确。
4.如果您使用的是SQLite数据库，确保您有写入数据库文件的权限，因为有时权限问题可能导致无法创建数据库表。
按照这些步骤之一，您应该能够成功执行python manage.py createsuperuser命令并创建超级用户。
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