Class is not registered in the manifest

Class is not registered in the manifest

Activities, services and content providers should be registered in the AndroidManifest.xml file using <activity>, <service> and <provider> tags.

If your activity is simply a parent class intended to be subclassed by other "real" activities, make it an abstract class.

Issue id: Registered

https://developer.android.com/guide/topics/manifest/manifest-intro.html