Tuesday, May 31, 2016

django.db.migrations.graph.NodeNotFoundError:

When new project start,   commands makemigrations and runserver  get  error message.    I do not know what I did wrong.   I cannot find solution to fix it.  Please  any suggestion ? 


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System check identified no issues (0 silenced).

Unhandled exception in thread started by <function wrapper at 0x0391B9B0>

Traceback (most recent call last):

  File "C:\Python27\lib\site-packages\django\utils\autoreload.py", line 229, in wrapper

    fn(*args, **kwargs)

  File "C:\Python27\lib\site-packages\django\core\management\commands\runserver.py", line 116, in inner_run

    self.check_migrations()

  File "C:\Python27\lib\site-packages\django\core\management\commands\runserver.py", line 168, in check_migrations

    executor = MigrationExecutor(connections[DEFAULT_DB_ALIAS])

  File "C:\Python27\lib\site-packages\django\db\migrations\executor.py", line 19, in __init__

    self.loader = MigrationLoader(self.connection)

  File "C:\Python27\lib\site-packages\django\db\migrations\loader.py", line 47, in __init__

    self.build_graph()

  File "C:\Python27\lib\site-packages\django\db\migrations\loader.py", line 318, in build_graph

    _reraise_missing_dependency(migration, parent, e)

  File "C:\Python27\lib\site-packages\django\db\migrations\loader.py", line 288, in _reraise_missing_dependency

    raise exc

django.db.migrations.graph.NodeNotFoundError: Migration auth.0007_user_following dependencies reference nonexistent parent node (u'account', u'0003_contact')

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