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

I also had the problem after globally changing the project name, applicationid and the folders containing the java files.

Disabling Instant run helped, but was not a good option, so this helped:

• close Android Studio
• deleted those files and folders: rm -Rf .gradle .tags local.properties .idea/workspace.xml .idea/caches/* .idea/libraries app/build
• start Android Studio and let it resync everything
• press run