Can't run pubsub tutorial in Eclipse for Android
I have the code in Eclipse. I press run. And then I get this error: unable to instantiate activity ComponentInfo{org.ros.android.android_tutorial_pubsub/org.ros.android.android_tutorial_pubsub.MainActivity}
ClassNotfoundException: org.ros.android_tutorial_pubsub.MainActivity
So do the tutorials have non-working code?