Android Studio: Application Installation Failed

Question

I\'ve been trying to learn how to use Android Studio but when I attempted to run one of the sample programs I get this error message:

Installation fai

Answer 1

Path: Android Studio Preference / Build, Execution, Deployment / Instant Run

Go to Android Studio Preference (for Mac) or Settings (for windows)

Choose Build, Execution, Deployment tab

Choose Instant Run

Uncheck Enable Instant Run to hot swap code/resources changes on deply (default enabled)

It works for me!!