Android: Unable to instantiate activity / ClassNotFoundException

Question

I recently published an app to the market and I\'m now getting an error by some user, the app presumably crashes right when it starts. Unfortunately I can\'t contact him dir

Answer 1

Delete BIN and GEN folder files. Rebuild, everything should work. Check if theres another error below the "unable to instantiate", sometimes another error is firing this (activity cant load because of something even if its class has been found.