Android Studio 2.1 debugger does not show local variables

Question

I am trying to debug over network in Android Studio. I connected via port 5555 and generally it is possible step through break points. But it often takes minutes just to execute one line of code and the other thing is that I don't see any variables which are no members. All I see is the this object, but no variables from within methods. How can I enable it?

As you can see I am within the method and at least the activity object is initialized, but it is not visible in the variables monitor.

UPDATE:

The problem remains when using USB debugging. No local variables are visible, not even when trying to evaluate expressions while debugging:

Android Studio 2.1, Gradle 2.1.0, Java 1.8

Answer 1

Had the same problem.

There is a bug in Android Studio, see https://code.google.com/p/android/issues/detail?id=93730

They recommend removing in build.gradle (app), this fixed the issue for me.

android {     buildTypes {         debug {             ...             testCoverageEnabled true         }     } } 

Answer 2

After a while of figuring out this same issue, I realized I was running a release build rather than a debug build.

The build variants window may not be open in Android Studio by default. Go to Tool Windows -> Build Variants. In the Build Variants window, select the appropriate build.

In your app.gradle file, make sure debuggable is set to true in the build variant you would like to debug:

android {     // ...     buildTypes {        release {          // ...       }        debug {          debuggable true       }     }     // ...  } 

If you would like to debug your release build, go ahead and add debuggable true to your release build.

Hope this helps!