我在项目上使用South已有一段时间了，但是最近我进行了大量开发工作并更改了开发机器，我认为在此过程中会有些困惑。该项目运行正常，但我无法应用迁移。每当我尝试应用迁移时，都会得到以下回溯:
danpalmer:pest Dan$ python manage.py migrate frontend
Traceback (most recent call last):
File "manage.py", line 11, in <module>
execute_manager(settings)
File "/Library/Python/2.6/site-packages/django/core/management/__init__.py", line 362, in execute_manager
utility.execute()
File "/Library/Python/2.6/site-packages/django/core/management/__init__.py", line 303, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/Library/Python/2.6/site-packages/django/core/management/base.py", line 195, in run_from_argv
self.execute(*args, **options.__dict__)
File "/Library/Python/2.6/site-packages/django/core/management/base.py", line 222, in execute
output = self.handle(*args, **options)
File "/Library/Python/2.6/site-packages/South-0.7-py2.6.egg/south/management/commands/migrate.py", line 102, in handle
delete_ghosts = delete_ghosts,
File "/Library/Python/2.6/site-packages/South-0.7-py2.6.egg/south/migration/__init__.py", line 182, in migrate_app
applied = check_migration_histories(applied, delete_ghosts)
File "/Library/Python/2.6/site-packages/South-0.7-py2.6.egg/south/migration/__init__.py", line 85, in check_migration_histories
m = h.get_migration()
File "/Library/Python/2.6/site-packages/South-0.7-py2.6.egg/south/models.py", line 34, in get_migration
return self.get_migrations().migration(self.migration)
File "/Library/Python/2.6/site-packages/South-0.7-py2.6.egg/south/models.py", line 31, in get_migrations
return Migrations(self.app_name)
File "/Library/Python/2.6/site-packages/South-0.7-py2.6.egg/south/migration/base.py", line 60, in __call__
self.instances[app_label] = super(MigrationsMetaclass, self).__call__(app_label_to_app_module(app_label), **kwds)
File "/Library/Python/2.6/site-packages/South-0.7-py2.6.egg/south/migration/base.py", line 88, in __init__
self.set_application(application, force_creation, verbose_creation)
File "/Library/Python/2.6/site-packages/South-0.7-py2.6.egg/south/migration/base.py", line 159, in set_application
raise exceptions.NoMigrations(application)
south.exceptions.NoMigrations: Application '<module 'django.contrib.auth' from '/Library/Python/2.6/site-packages/django/contrib/auth/__init__.pyc'>' has no migrations.
我对South的经验不足，以前从未遇到过此错误。我可以在网上找到关于此错误的唯一有用的提及，我认为这是针对0.7之前的版本，而我位于South 0.7。我运行“easy_install -U South”只是为了确保。
最佳答案
将此留给 future 的Google员工使用
我最近在今天遇到了一个异常(exception)，我今天使用的是我自己的一个应用程序，而不是偶然的一个。
经过一番苦思冥想之后，我注意到文件以某种方式...
app/migrations/__init__.py
...已被删除，这意味着python无法将目录导入为模块等。
关于database - 南向迁移错误:django.contrib.auth的NoMigrations异常，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/2845697/