在settings.py中增加

INSTALLED_APPS = [

    ...

    'django.contrib.sites',

]

问题就解决了。什么原因。——不知道。。

具体请看：

https://stackoverflow.com/questions/35388637/runtimeerror-model-class-django-contrib-sites-models-site-doesnt-declare-an-ex

doesn't declare an explicit app_label and isn't in an application in INSTALLED_APPS.的更多相关文章

  1. 关于Django 错误 doesn't declare an explicit app_label and isn't in an application in INSTALLED_APPS

    记录一下 报错 doesn't declare an explicit app_label and isn't in an application in INSTALLED_APPS\ 这个问题出现没 ...

  2. RuntimeError: Model class app_anme.models.User doesn't declare an explicit app_label and isn't in an application in INSTALLED_APPS.---python学习错误记录

    untimeError: Model class app_anme.models.User doesn't declare an explicit app_label and isn't in an ...

  3. RuntimeError: Model class apps.users.models.User doesn't declare an explicit app_label and isn't in an application in INSTALLED_APPS.

    报错代码: File "/home/bsodgm/Desktop/Django_projection/mall/apps/users/views.py", line 9, in & ...

  4. Django开发BUG "Model class WH_auth.models.User doesn't declare an explicit app_label and isn't in an application in INSTALLED_APPS."

    当进行数据库迁移的时候发生问题,报错如下:RuntimeError: Model class WH_auth.models.User doesn't declare an explicit app_l ...

  5. Django RuntimeError: Model class app_anme.models.Ad doesn't declare an explicit app_label and isn't in an application in INSTALLED_APPS.报错

    报错内容 RuntimeError: Model class app_anme.models.Ad doesn't declare an explicit app_label and isn't in ...

  6. RuntimeError: Model class users.models.UserProfile doesn't declare an explicit app_label and isn't in an application in INSTALLED_APPS.

    Django启动的时候报错 File "/home/hehecat/PycharmProjects/MxShop/MxShop/urls.py", line 23, in from ...

  7. RuntimeError: Model class user.models.User doesn't declare an explicit app_label and isn't in an application in INSTALLED_APPS.

    Django 2.x版本迁移数据库报这个错误,user表使用的Django的验证系统 本来就想改一下用户表的表名,莫名的报了个这个错误,在网上找到了解决办法 打开user应用模块下的apps.py文件 ...

  8. Model class apps.goods.models.GoodsType doesn't declare an explicit app_label and isn't in an application in INSTALLED_APPS

    在admin.py注册这个model时,报了个错: RuntimeError: Model class apps.goods.models.GoodsType doesn't declare an e ...

  9. 在views中引用UserProfile报错RuntimeError: Model class apps.users.models.UserProfile doesn't declare an explicit app_label and isn't in an application in INSTALLED_APPS.

    如图报错,在settings中,该加的也加了啊! 显然类似于网上最容易遇到的解决方案如下图,是没有任何意义的 只要在view中有 from .models import UserProfile,Ver ...

  10. RuntimeError: Model class myapp.models.Test doesn't declare an explicit app_label and isn't in an application in INSTALLED_APPS.

    没有添加子应用在settings里面!

随机推荐

  1. react中如何处理日期格式整理

    1.第一种模式——对应组件:DatePicker: 需要引入 import moment from "moment"; values.cfjdrq = moment(values. ...

  2. 第二十二章 集成验证码——《跟我学Shiro》

    目录贴:跟我学Shiro目录贴 在做用户登录功能时,很多时候都需要验证码支持,验证码的目的是为了防止机器人模拟真实用户登录而恶意访问,如暴力破解用户密码/恶意评论等.目前也有一些验证码比较简单,通过一 ...

  3. iOS技术面试02：内存管理

    怎么保证多人开发进行内存泄露的检查. 如何定位内存泄露? 1> 使用Analyze进行代码的静态分析(检测有无潜在的内存泄露) 2> 通过leak检查在程序运行过程中有无内存泄露 3> ...

  4. 二十四 java 多线程一些知识点

    1:blocked线程和waiting的线程的区别? 如何唤醒? java线程中含有waiting与blocked两种状态: 线程的 blocked状态往往是无法进入同步方法/代码块来完成的(BLOC ...

  5. leetcode1186 Maximum Subarray Sum with One Deletion

    思路: 最大子段和的变体,前后两个方向分别扫一遍即可. 实现: class Solution { public: int maximumSum(vector<int>& arr) ...

  6. redis相关操作命令

    一.相关命令列表: 命令原型 时间复杂度 命令描述 返回值 KEYS pattern O(N) 时间复杂度中的N表示数据库中Key的数量.获取所有匹配pattern参数的Keys.需要说明的是,在我们 ...

  7. selenium3.0不兼容火狐的解决方案

    当直接调用火狐出现不兼容错误时,如何解决? 详看Message中提示:Expected browser binary location,but unable to find binary in def ...

  8. @Value注入static属性

    1. 给参数注入,执行set方法 public class SendMessageCenter {     private static String message;    private stat ...

  9. 生成 n 个不同的随机数且随机数区间为 [0,n)

    生成 n 个不同的随机数且随机数区间为 [0,n) Java 实现 import java.util.ArrayList; import java.util.List; import java.uti ...

  10. [转帖][思路/技术]Mimikatz的多种攻击方式以及防御方式

    [思路/技术]Mimikatz的多种攻击方式以及防御方式 https://bbs.ichunqiu.com/thread-53954-1-1.html 之前学习过 抄密码 没想到还有这么多功能.   ...