Unable to merge dex

Question

I have Android Studio Beta. I created a new project with compile my old modules but when I tried launching the app it did not launch with the message:

Error:         


        

Answer 1

In my case issue was because of the room library:

compile 'android.arch.persistence.room:runtime:1.0.0-alpha1'

Changing it to:

compile 'android.arch.persistence.room:runtime:1.0.0'

worked.