How To Stop Installation of Multiple Slice APK In Android Studio 2.3

Here's my solution (there's no need to deactivate instant run) Do all these steps in the stated order:

1. Gradle Build (root level)

   

2. Gradle build + clean (app level)

   

3. Choose app on the top bar (left of run 'app')

   

4. Clean Project

   Navigate to Build > Clean Project

And it should work now!

• Solution 2: disable instant run (as stated by Teresa)

This is caused by "instant run" feature in studio 2.3, you can disable it by:

Open the Settings or Preferences dialog. Navigate to Build, Execution, Deployment > Instant Run. Uncheck the box next to Enable Instant Run.

More info, please check: https://developer.android.com/studio/run/index.html