[Solved] Problem with Android-Studio

Hi,
I just finished a test app to try cocos, I can build everything in Android studio but I have a little problem, when I run my app from Android-studio it works perfectly fine, however when I install the resulting apk the app crashes. The error contains something like: (Didn’t find class “org.cocos2dx.cpp.AppActivity” ), which means it isn’t able to find the activity class. How can I solve this problem?
Thanks

Which APK did you installed?

Hi,
Thanks for your response.
I’ve already solved the problem. For some reason, some of the gradle config files were “corrupted” so I just copied the files from other project, modified them and then it worked.