^ yang link ane udah blom gun? stackoverflow :hammer: http://stackoverflow.com/questions/8645442/android-class-not-found-from-imported-jar-file http://stackoverflow.com/questions/1334802/how-can-i-use-external-jars-in-an-android-project
https://www.google.com/search?q=Class+referenced+in+the+layout+file+was+not+found+in+the+project+o r+the+libraries+android&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a ada dua stackoverflow tuh, dah dicobain semua? coba baca comment2nya