甚至這個簡單示例引發一個ValueError: Dependency on app with no migrations: myApp
期間python manage.py syncdb
定製用戶在Django引發ValueError異常
對myApp/models.py
from django.contrib.auth.models import AbstractUser
class User(AbstractUser):
pass
settings.py
AUTH_USER_MODEL = 'myApp.User'
個運行在Django == ./manage syncdb
1.6.5 < <工作
Creating tables ...
在Django ==運行./manage syncdb
1.7 < <休息
Traceback (most recent call last):
File "manage.py", line 10, in <module>
execute_from_command_line(sys.argv)
File "/Users/bdhammel/Documents/web_development/tutorials/python_social_auth/env/lib/python2.7/site-packages/django/core/management/__init__.py", line 385, in execute_from_command_line
utility.execute()
File "/Users/bdhammel/Documents/web_development/tutorials/python_social_auth/env/lib/python2.7/site-packages/django/core/management/__init__.py", line 377, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/Users/bdhammel/Documents/web_development/tutorials/python_social_auth/env/lib/python2.7/site-packages/django/core/management/base.py", line 288, in run_from_argv
self.execute(*args, **options.__dict__)
File "/Users/bdhammel/Documents/web_development/tutorials/python_social_auth/env/lib/python2.7/site-packages/django/core/management/base.py", line 338, in execute
output = self.handle(*args, **options)
File "/Users/bdhammel/Documents/web_development/tutorials/python_social_auth/env/lib/python2.7/site-packages/django/core/management/base.py", line 533, in handle
return self.handle_noargs(**options)
File "/Users/bdhammel/Documents/web_development/tutorials/python_social_auth/env/lib/python2.7/site-packages/django/core/management/commands/syncdb.py", line 27, in handle_noargs
call_command("migrate", **options)
File "/Users/bdhammel/Documents/web_development/tutorials/python_social_auth/env/lib/python2.7/site-packages/django/core/management/__init__.py", line 115, in call_command
return klass.execute(*args, **defaults)
File "/Users/bdhammel/Documents/web_development/tutorials/python_social_auth/env/lib/python2.7/site-packages/django/core/management/base.py", line 338, in execute
output = self.handle(*args, **options)
File "/Users/bdhammel/Documents/web_development/tutorials/python_social_auth/env/lib/python2.7/site-packages/django/core/management/commands/migrate.py", line 63, in handle
executor = MigrationExecutor(connection, self.migration_progress_callback)
File "/Users/bdhammel/Documents/web_development/tutorials/python_social_auth/env/lib/python2.7/site-packages/django/db/migrations/executor.py", line 17, in __init__
self.loader = MigrationLoader(self.connection)
File "/Users/bdhammel/Documents/web_development/tutorials/python_social_auth/env/lib/python2.7/site-packages/django/db/migrations/loader.py", line 48, in __init__
self.build_graph()
File "/Users/bdhammel/Documents/web_development/tutorials/python_social_auth/env/lib/python2.7/site-packages/django/db/migrations/loader.py", line 239, in build_graph
parent = self.check_key(parent, key[0])
File "/Users/bdhammel/Documents/web_development/tutorials/python_social_auth/env/lib/python2.7/site-packages/django/db/migrations/loader.py", line 163, in check_key
raise ValueError("Dependency on app with no migrations: %s" % key[0])
ValueError: Dependency on app with no migrations: myApp
我一直沒能找到任何在1.7的文檔中說這應該與1.6完全不同。它確實看起來像其他人已經有this problem too,但由於運行./manage.py migrate --list
有沒有人遇到過這個?
如果你只是想創建一個新的數據庫,你不關心數據遷移,你也可以刪除'myApp/migration'目錄。在我的例子中,'migrate'只有在它之後纔開始工作。 – deathangel908 2015-03-13 19:37:59