E:\SweetYaya\MyProj01> python manage.py migrate
Traceback (most recent call last):
  File "manage.py", line 22, in <module>
    main()
  File "manage.py", line 18, in main
    execute_from_command_line(sys.argv)
  File "D:\Program Files\Python36\lib\site-packages\django\core\management\__init__.py", line 419, in execute_from_command_line
    utility.execute()
  File "D:\Program Files\Python36\lib\site-packages\django\core\management\__init__.py", line 413, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "D:\Program Files\Python36\lib\site-packages\django\core\management\base.py", line 354, in run_from_argv
    self.execute(*args, **cmd_options)
  File "D:\Program Files\Python36\lib\site-packages\django\core\management\base.py", line 398, in execute
    output = self.handle(*args, **options)
  File "D:\Program Files\Python36\lib\site-packages\django\core\management\base.py", line 89, in wrapped
    res = handle_func(*args, **kwargs)
  File "D:\Program Files\Python36\lib\site-packages\django\core\management\commands\migrate.py", line 95, in handle
    executor.loader.check_consistent_history(connection)
  File "D:\Program Files\Python36\lib\site-packages\django\db\migrations\loader.py", line 310, in check_consistent_history
    connection.alias,
django.db.migrations.exceptions.InconsistentMigrationHistory: Migration admin.0001_initial is applied before its dependency MyApp.0001_initial on database 'default'.

解决办法

方法1

删库，删除数据库中的所有 auth_ 开头和 django_ 开头的表，重新执行即可。太粗暴了，不太好。

方法2

• 先 makemigrations
• 打开 settings.py ，注释掉 INSTALL_APPS 中的
  'django.contrib.admin',
• 打开 urls.py ，注释掉 urlpatterns 中的 admin
• 再 migrate 就不报错了
• 最后注意把注释内容恢复回来就好了