小编bra*_*oop的帖子

得到了这个怪异的错误

Installation failed with message Failed to finalize session : INSTALL_FAILED_USER_RESTRICTED: Install canceled by user.
It is possible that this issue is resolved by uninstalling an existing version of the apk if it is present, and then re-installing.

WARNING: Uninstalling will remove the application data!

Do you want to uninstall the existing application?

当我试图在我的redmi 4中运行apk时 MIUI 8.5.4.0

启用OEM解锁

解决方案

• MIUI优化已关闭
• USB调试开启
• 验证USB上的应用是否已开启

注意:在通过USB打开安装时弹出一个说明设备暂时受限制

我正在从[THIS] [1]教程学习Django.一切都很顺利,直到这一步:

现在更改您的民意调查/ index.html模板:

<li><a href="{% url 'detail' poll.id %}">{{ poll.question }}</a></li>

指向命名空间详细信息视图:

<li><a href="{% url 'polls:detail' poll.id %}">{{ poll.question }}</a></li>

你可以看到整段[HERE] [2].

这就是我将'细节'改为'民意调查:细节'之后发生的事情:

NoReverseMatch at /polls/
'polls' is not a registered namespace
Request Method: GET
Request URL:    http://127.0.0.1:8000/polls/
Django Version: 1.6.4
Exception Type: NoReverseMatch
Exception Value:    
'polls' is not a registered namespace
Exception Location: D:\Programy\Python 3.4\lib\site-packages\django\core\urlresolvers.py in reverse, line 528
Python Executable:  D:\Programy\Python 3.4\python.exe
Python Version: 3.4.0
Python Path:    
['D:\\dziango\\strona1',
 'D:\\Programy\\Python 3.4\\python34.zip',
 'D:\\Programy\\Python 3.4\\DLLs',
 'D:\\Programy\\Python 3.4\\lib',
 'D:\\Programy\\Python 3.4',
 'D:\\Programy\\Python …