android - I am getting ClasscastException -

android - I am getting ClasscastException -

i implementing google analytics in android app. while accessing application class mainactivity next error coming:

java.lang.runtimeexception: unable start activity componentinfo{com.example.gaa/com.example.gaa.activity}: java.lang.classcastexception: android.app.application cannot cast com.example.gaa.gaapp

i calling application class activity class given code:

((gaapplication)getapplication()).gettracker(gaapplication.trackername.app_tracker);

make sure you've specified utilize gaapplication class in androidmanifest:

<!-- ... --> <application android:name=".gaapplication"> <!-- ... --> </application>

android exception