我正在填充SQLite数据库,并想在我的django项目中使用它。以前效果不错,但现在我想migrate
时出现以下错误:
Operations to perform:
Apply all migrations: admin, auth, contenttypes, sessions
Running migrations:
Traceback (most recent call last):
File "C:\Daten\Software\venv_SQLdatabase\lib\site-packages\django\db\backends\utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
File "C:\Daten\Software\venv_SQLdatabase\lib\site-packages\django\db\backends\sqlite3\base.py", line 383, in execute
return Database.Cursor.execute(self, query, params)
sqlite3.OperationalError: no such column: None
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "C:\Daten\Software\venv_SQLdatabase\lib\site-packages\django\db\migrations\recorder.py", line 67, in ensure_schema
editor.create_model(self.Migration)
File "C:\Daten\Software\venv_SQLdatabase\lib\site-packages\django\db\backends\sqlite3\schema.py", line 34, in __exit__
self.connection.check_constraints()
File "C:\Daten\Software\venv_SQLdatabase\lib\site-packages\django\db\backends\sqlite3\base.py", line 311, in check_constraints
(rowid,),
File "C:\Daten\Software\venv_SQLdatabase\lib\site-packages\django\db\backends\utils.py", line 99, in execute
return super().execute(sql, params)
File "C:\Daten\Software\venv_SQLdatabase\lib\site-packages\django\db\backends\utils.py", line 67, in execute
return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
File "C:\Daten\Software\venv_SQLdatabase\lib\site-packages\django\db\backends\utils.py", line 76, in _execute_with_wrappers
return executor(sql, params, many, context)
File "C:\Daten\Software\venv_SQLdatabase\lib\site-packages\django\db\backends\utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
File "C:\Daten\Software\venv_SQLdatabase\lib\site-packages\django\db\utils.py", line 89, in __exit__
raise dj_exc_value.with_traceback(traceback) from exc_value
File "C:\Daten\Software\venv_SQLdatabase\lib\site-packages\django\db\backends\utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
File "C:\Daten\Software\venv_SQLdatabase\lib\site-packages\django\db\backends\sqlite3\base.py", line 383, in execute
return Database.Cursor.execute(self, query, params)
django.db.utils.OperationalError: no such column: None
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "manage.py", line 21, in <module>
main()
File "manage.py", line 17, in main
execute_from_command_line(sys.argv)
File "C:\Daten\Software\venv_SQLdatabase\lib\site-packages\django\core\management\__init__.py", line 381, in execute_from_command_line
utility.execute()
File "C:\Daten\Software\venv_SQLdatabase\lib\site-packages\django\core\management\__init__.py", line 375, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "C:\Daten\Software\venv_SQLdatabase\lib\site-packages\django\core\management\base.py", line 323, in run_from_argv
self.execute(*args, **cmd_options)
File "C:\Daten\Software\venv_SQLdatabase\lib\site-packages\django\core\management\base.py", line 364, in execute
output = self.handle(*args, **options)
File "C:\Daten\Software\venv_SQLdatabase\lib\site-packages\django\core\management\base.py", line 83, in wrapped
res = handle_func(*args, **kwargs)
File "C:\Daten\Software\venv_SQLdatabase\lib\site-packages\django\core\management\commands\migrate.py", line 234, in handle
fake_initial=fake_initial,
File "C:\Daten\Software\venv_SQLdatabase\lib\site-packages\django\db\migrations\executor.py", line 91, in migrate
self.recorder.ensure_schema()
File "C:\Daten\Software\venv_SQLdatabase\lib\site-packages\django\db\migrations\recorder.py", line 69, in ensure_schema
raise MigrationSchemaMissing("Unable to create the django_migrations table (%s)" % exc)
django.db.migrations.exceptions.MigrationSchemaMissing: Unable to create the django_migrations table (no such column: None)
我正在使用Django 2.2.15和Python 3.7.6。