android studio 3.0 出现“应用未安装”情况处理
1、清理项目，Cleaned the Project
2、删除项目的build文件夹，Deleted the Build directory
3、重启android Studio ,Restarted Android Studio
4、重新生成项目，Rebuild the Project
Run
And everything worked fine!
I think the key is to restart your IDE.
Hope this helps you or anyone else!
开心洋葱 , 版权所有丨如未注明 , 均为原创丨未经授权请勿修改 , 转载请注明android studio 3.0 出现“应用未安装”情况处理！
