Question

我无法卸载Django应用。我删除了代码中的每个应用程序，删除了所有模型和网址。然后，我从settings.py删除了部分应用，但在我为settings.py删除它时会出现错误。

它可能与迁移有关，但我没有得到它，因为所有迁移都已迁移...

这是一个追溯：

Unhandled exception in thread started by <function wrapper at 0x038E6130>
Traceback (most recent call last):
  File "C:\Users\Milano\PycharmProjects\FutileStudio\SolutionsForLanguages_2\venv\lib\site-packages\django\utils\autoreload.py", line 229, in wrapper
    fn(*args, **kwargs)
  File "C:\Users\Milano\PycharmProjects\FutileStudio\SolutionsForLanguages_2\venv\lib\site-packages\django\core\management\commands\runserver.py", line 116, in inner_run
    self.check_migrations()
  File "C:\Users\Milano\PycharmProjects\FutileStudio\SolutionsForLanguages_2\venv\lib\site-packages\django\core\management\commands\runserver.py", line 168, in check_migrations
    executor = MigrationExecutor(connections[DEFAULT_DB_ALIAS])
  File "C:\Users\Milano\PycharmProjects\FutileStudio\SolutionsForLanguages_2\venv\lib\site-packages\django\db\migrations\executor.py", line 19, in __init__
    self.loader = MigrationLoader(self.connection)
  File "C:\Users\Milano\PycharmProjects\FutileStudio\SolutionsForLanguages_2\venv\lib\site-packages\django\db\migrations\loader.py", line 47, in __init__
    self.build_graph()
  File "C:\Users\Milano\PycharmProjects\FutileStudio\SolutionsForLanguages_2\venv\lib\site-packages\django\db\migrations\loader.py", line 314, in build_graph
    parent = self.check_key(parent, key[0])
  File "C:\Users\Milano\PycharmProjects\FutileStudio\SolutionsForLanguages_2\venv\lib\site-packages\django\db\migrations\loader.py", line 176, in check_key
    raise ValueError("Dependency on unknown app: %s" % key[0])
ValueError: Dependency on unknown app: quiz

Answer 1

迁移文件存在问题，其中包含已卸载的应用程序的参考。

这可能不是最好的方法，但它有效：

我备份了所有应用程序的所有迁移（能够进行回滚）
删除了所有迁移
makemigrations and migrate
工作

无法卸载Django应用程序

1 个答案: