Android NotificationManager giving me “no valid small icon” error

Question

I am having a strange error with notification manager.

@Override
public void onMessageReceived(String from, Bundle data)
{
     Log.i(TAG, \"IP : \" + (Strin         


        

Answer 1

This suddenly started happening to my application. After some research, I found this change in my manifest file actually started causing it.

from:

to:

I saw somewhere that somebody noted that it only checks for the icon if the target sdk version is set. Sure enough, in the source, there is this :

if (mContext.getApplicationInfo().targetSdkVersion > Build.VERSION_CODES.LOLLIPOP_MR1) {
    if (notification.getSmallIcon() == null) {
        throw new IllegalArgumentException("Invalid notification (no valid small icon): "
                + notification);
    }
}

Luckily, the solution was simple, just define the icon in the manifest: