Django的manage.py遷移引發AttributeError的

Question

當我嘗試遷移我的數據庫，我得到這個錯誤：

Running migrations for easy_thumbnails: 
- Nothing to migrate. 
- Loading initial data for easy_thumbnails. 
Traceback (most recent call last): 
    File "manage.py", line 10, in <module> 
    execute_from_command_line(sys.argv) 
    File "/Library/Python/2.7/site-packages/django/core/management/__init__.py", line 399, in execute_from_command_line 
    utility.execute() 
    File "/Library/Python/2.7/site-packages/django/core/management/__init__.py", line 392, in execute 
    self.fetch_command(subcommand).run_from_argv(self.argv) 
    File "/Library/Python/2.7/site-packages/django/core/management/base.py", line 242, in run_from_argv 
    self.execute(*args, **options.__dict__) 
    File "/Library/Python/2.7/site-packages/django/core/management/base.py", line 285, in execute 
    output = self.handle(*args, **options) 
    File "/Library/Python/2.7/site-packages/south/management/commands/migrate.py", line 111, in handle 
    ignore_ghosts = ignore_ghosts, 
    File "/Library/Python/2.7/site-packages/south/migration/__init__.py", line 233, in migrate_app 
    migrator.load_initial_data(target, db=database) 
    File "/Library/Python/2.7/site-packages/south/migration/migrators.py", line 222, in load_initial_data 
    self.post_1_6(target, db) 
    File "/Library/Python/2.7/site-packages/south/migration/migrators.py", line 240, in post_1_6 
    old_cache = django.db.models.loading.cache 
AttributeError: 'module' object has no attribute 'loading' 

應用程序版本：

Django 1.6.2 
Easy thumbnails 1.4 
Mptt 0.5.5 
Pymorphy 0.5.6 
Python 2.7.5 
Pytils 0.3dev 
South 0.8.4 
Suit 0.2.5 

它看起來像沒有easy_thumbnails問題，因爲當我嘗試遷移我的django-allauth時，它會引發同樣的錯誤。 請幫幫我！

Answer 1

看來你的django軟件包壞掉了。檢查你的環境中是否有python2.7/site-packages/django/db/models/loading.py文件。或者重新安裝django軟件包。

pip install -U --force-reinstall django