Django执行python manage.py runserver报错及解决方法

2019年1月21日 Django 8,175 views 0

Django执行命令python manage.py runserver，提示“You have unapplied migrations; your app may not work properly until they are applied.
Run 'python manage.py migrate' to apply them.”的解决方法，码笔记分享：

python manage.py runserver错误及解决方法

执行命令：python manage.py runserver
报错：“You have unapplied migrations; your app may not work properly until they are applied.
Run 'python manage.py migrate' to apply them.”

解决方法

报错信息已经说的很清楚了，让我们“Run 'python manage.py migrate' to apply them.”，运行python manage.py migrate命令即可。那么这个命令中的migrate是什么？它能够让我们在修改Model后可以在不影响现有数据的前提下重建表结构。

示例：

[root@mabiji HelloDjango]# python manage.py runserver 0.0.0.0:80
Performing system checks...

System check identified no issues (0 silenced).

You have unapplied migrations; your app may not work properly until they are applied.
Run 'python manage.py migrate' to apply them.

January 21, 2019 - 13:57:40
Django version 1.8.9, using settings 'HelloDjango.settings'
Starting development server at http://0.0.0.0:8000/
Quit the server with CONTROL-C.
^Z
[1]+  已停止               python manage.py runserver 0.0.0.0:8000
[root@mabiji HelloDjango]# python manage.py migrate
Operations to perform:
  Synchronize unmigrated apps: staticfiles, messages
  Apply all migrations: admin, contenttypes, auth, sessions
Synchronizing apps without migrations:
  Creating tables...
    Running deferred SQL...
  Installing custom SQL...
Running migrations:
  Rendering model states... DONE
  Applying contenttypes.0001_initial... OK
  Applying auth.0001_initial... OK
  Applying admin.0001_initial... OK
  Applying contenttypes.0002_remove_content_type_name... OK
  Applying auth.0002_alter_permission_name_max_length... OK
  Applying auth.0003_alter_user_email_max_length... OK
  Applying auth.0004_alter_user_username_opts... OK
  Applying auth.0005_alter_user_last_login_null... OK
  Applying auth.0006_require_contenttypes_0002... OK
  Applying sessions.0001_initial... OK

执行命令python manage.py migrate后，你会发现，在你的Django目录下面多了一个dg.sqlite3文件。

然后再重新执行命令python manage.py runserver即可搞定。

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