Django连接mssql，数据库迁移的时候报错

Question

  Applying auth.0008_alter_user_username_max_length...Traceback (most recent call last):

  File "manage.py", line 22, in <module>

    ................

 django.db.utils.OperationalError: <exception str() failed>

Answer 1

你改了users表的username字段吧，models.py截图看一下