自己做的一个应用，签名打包后发布release版在自己的Nexus5X手机上测，安装时提示应用未安装，而在其他的手机上都能安装成功，求解？
PHPz2017-04-17 17:38:09
It means that the previously installed APP has not been deleted. The corresponding application can be found in Settings--Apps--All Applications, and the application will display "Not installed for this user." Click to enter the application information interface, and select "Uninstall for all users" from the menu bar in the upper right corner.
