Application Installation Failed in Android Studio

Question

Yesterday my app was running perfect from Android Studio but today when I started working on my app and running it i am getting error message continuously

Answer 1

Before trying anything else in this post, I would do Build >> Clean Project. It solved my problem and it is the simplest solution. Sometimes, the cleaning doesnt get some links, so I also recommend you to restart your devices, either virtual or physical.

If it doesnt work out, try turning of Instant Run by File > Settings > Build,Execution,Deployment > Instant Run > Un-check

Only after trying this two simple solutions, I would try the others.