Several dex files define Lcom / squareup / javawriter / JavaWriter $ Scope; when trying to compile with dagger and dagger compiler

I have this in my build.gradle app modules

compile 'com.squareup.dagger:dagger:1.2.2'
compile 'com.squareup.dagger:dagger-compiler:1.2.2'

      

        
        
        
      

    

When I try to build I get the above exception ( http://i.imgur.com/PMTZwWq.png )

If I don't include the compiler, I get:

Module adapter for class ....AndroidModule could not be loaded. Please ensure that code generation was run for this module.

      

        
        
        
      

    

Why am I getting this exception and how do I resolve it?

I am using Android Studio.