java.lang.RuntimeException: Unable to instantiate activity ComponentInfo/ ClassNotFoundException

Question

I\'m develop android application and than i wanna additional new Activity i had error on my logcat

My LogCat:

04-19 12:59:17.654: D/AndroidRuntime(18         


        

Answer 1

I had the same problem, but I had my activity declared in the Manifest file, with the correct name.

My problem was that I didn't have to imported a third party libraries in a "libs" folder, and I needed reference them in my proyect (Right-click, properties, Java Build Path, Libraries, Add Jar...).

About how do you declare an activity in the manifest file, is correct use .ActivityName always that activity be in the main package.