Java Argument Exception - setting mAppId constant

Question: My Android application does not register for push notifications with the following exception.

E/Pushwoosh: Exception occurred
 java.lang.IllegalArgumentException: Please set the mAppId constant and recompile the app.
 at com.pushwoosh.internal.platform.utils.GeneralUtils.checkNotNullOrEmpty(Unknown Source:23)
 at com.pushwoosh.internal.registrar.a$a.a(Unknown Source:12)
 at com.pushwoosh.internal.registrar.a.checkDevice(Unknown Source:2)
 at com.pushwoosh.notification.e.a(Unknown Source:45)
 at com.pushwoosh.Pushwoosh.a(Unknown Source:11)
 at com.pushwoosh.l.a(Unknown Source:4)
 at com.pushwoosh.inapp.a.a.a(Unknown Source:11)
 at com.pushwoosh.inapp.a.b.run(Unknown Source:6)
 at android.os.Handler.handleCallback(Handler.java:790)
 at android.os.Handler.dispatchMessage(Handler.java:99)
 at android.os.Looper.loop(Looper.java:164)
 at android.app.ActivityThread.main(ActivityThread.java:6494)
 at java.lang.reflect.Method.invoke(Native Method)
 at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
 at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)

Answer:

Typically, this error occurs when the metadata was placed in the wrong place. As a result, your application is not able to register for push notifications.

In order to resolve this, please note that it is necessary to place the metadata from the Android SDK integration guide within the application part of your AndroidManifest.xml. Take a look at the screenshot below: