在我将一些Wordpress内容导入Mezzanine的blog_blogpost后,我在使用mysql 5.5的Ubuntu 12.04机器上出现这个错误。 ValueError at /admin/blog/blogpost/ Database returned an invalid value in QuerySet.dates(). Are time zone definitions and pytz installed? Request Method: GET Request URL: http://127.0.0.1:8000/admin/blog/blogpost/ Django Version: 1.6.1 Exception Type: ValueError Exception Value: Database returned an invalid value in QuerySet.dates(). Are time zone definitions and pytz installed? Exception Location: /home/me/.mezenv/local/lib/python2.7/site-packages/django/db/models/sql/compiler.py in results_iter, line 1107 […]