admin.0001_initial is applied before its dependency users.0001_initial on database 'default

 django.db.migrations.exceptions.InconsistentMigrationHistory: Migration admin.0001_initial is applied before its dependency users.0001_initial on database 'default'.

直接删除整个数据库(前提是你没有重要的数据在里面)，然后

1. 执行python manage.py makemigrations --empty 应用名;
2. 执行python manage.py makemigrations;
3. 执行python manage.py migrate 应用名;
4. 执行python manage.py migrate;