django.db.utils.DatabaseError：文件不是數據庫

Question

Watching for file changes with StatReloader
Performing system checks...
System check identified no issues (0 silenced).
Exception in thread django-main-thread:
Traceback (most recent call last):
  File "C:\Users\user\PycharmProjects\myweb\venv\lib\site-packages\django\db\backends\utils.py", line 82, in _execute
    return self.cursor.execute(sql)
  File "C:\Users\user\PycharmProjects\myweb\venv\lib\site-packages\django\db\backends\sqlite3\base.py", line 411, in execute
    return Database.Cursor.execute(self, query)
sqlite3.DatabaseError: file is not a database

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "C:\Users\user\AppData\Local\Programs\Python\Python38-32\lib\threading.py", line 932, in _bootstrap_inner
    self.run()
  File "C:\Users\user\AppData\Local\Programs\Python\Python38-32\lib\threading.py", line 870, in run
    self._target(*self._args, **self._kwargs)
  File "C:\Users\user\PycharmProjects\myweb\venv\lib\site-packages\django\utils\autoreload.py", line 53, in wrapper
    fn(*args, **kwargs)
  File "C:\Users\user\PycharmProjects\myweb\venv\lib\site-packages\django\core\management\commands\runserver.py", line 121, in inn
er_run
    self.check_migrations()
  File "C:\Users\user\PycharmProjects\myweb\venv\lib\site-packages\django\core\management\base.py", line 459, in check_migrations
    executor = MigrationExecutor(connections[DEFAULT_DB_ALIAS])
  File "C:\Users\user\PycharmProjects\myweb\venv\lib\site-packages\django\db\migrations\executor.py", line 18, in __init__
    self.loader = MigrationLoader(self.connection)
  File "C:\Users\user\PycharmProjects\myweb\venv\lib\site-packages\django\db\migrations\loader.py", line 53, in __init__
    self.build_graph()
  File "C:\Users\user\PycharmProjects\myweb\venv\lib\site-packages\django\db\migrations\loader.py", line 216, in build_graph
    self.applied_migrations = recorder.applied_migrations()
  File "C:\Users\user\PycharmProjects\myweb\venv\lib\site-packages\django\db\migrations\recorder.py", line 77, in applied_migratio
ns
    if self.has_table():
  File "C:\Users\user\PycharmProjects\myweb\venv\lib\site-packages\django\db\migrations\recorder.py", line 56, in has_table
    tables = self.connection.introspection.table_names(cursor)
  File "C:\Users\user\PycharmProjects\myweb\venv\lib\site-packages\django\db\backends\base\introspection.py", line 48, in table_na
mes
    return get_names(cursor)
  File "C:\Users\user\PycharmProjects\myweb\venv\lib\site-packages\django\db\backends\base\introspection.py", line 43, in get_name
s
    return sorted(ti.name for ti in self.get_table_list(cursor)
  File "C:\Users\user\PycharmProjects\myweb\venv\lib\site-packages\django\db\backends\sqlite3\introspection.py", line 74, in get_t
able_list
    cursor.execute("""
  File "C:\Users\user\PycharmProjects\myweb\venv\lib\site-packages\django\db\backends\utils.py", line 98, in execute
    return super().execute(sql, params)
  File "C:\Users\user\PycharmProjects\myweb\venv\lib\site-packages\django\db\backends\utils.py", line 66, in execute
    return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
  File "C:\Users\user\PycharmProjects\myweb\venv\lib\site-packages\django\db\backends\utils.py", line 75, in _execute_with_wrapper
s
    return executor(sql, params, many, context)
  File "C:\Users\user\PycharmProjects\myweb\venv\lib\site-packages\django\db\backends\utils.py", line 84, in _execute
    return self.cursor.execute(sql, params)
  File "C:\Users\user\PycharmProjects\myweb\venv\lib\site-packages\django\db\utils.py", line 90, in __exit__
    raise dj_exc_value.with_traceback(traceback) from exc_value
  File "C:\Users\user\PycharmProjects\myweb\venv\lib\site-packages\django\db\backends\utils.py", line 82, in _execute
    return self.cursor.execute(sql)
  File "C:\Users\user\PycharmProjects\myweb\venv\lib\site-packages\django\db\backends\sqlite3\base.py", line 411, in execute
    return Database.Cursor.execute(self, query)
django.db.utils.DatabaseError: file is not a database

首先，錯誤是“DatabaseError: database disk image is malformed”。

db.sqlite3 文件被刪除並重新創建，然后復制並粘貼。 然后就會出現這種錯誤。

我該怎么辦？

Answer 1

這可能是很多問題。

1. 檢查磁盤和代碼中的數據庫名稱。 您正在使用 windows 所以檢查文件名的寄存器。
2. 也許它以某種方式損壞，嘗試從頭開始創建它。 將當前數據庫移動到某個文件夾並再次運行它。
3. 它可以用不同版本的 sqllite 創建，檢查這個sqlite3.DatabaseError: file is not a database