Its the push notifications. Disabled it in Projucer Android Exporter settings. Got it working now yay! I love Juce 
!!
So I got the solution here: 5.4.4 + Android Studio (Windows) does not work?
Has the class for this changed in Android and should there be a better error catching for classes which are not found at: https://github.com/WeAreROLI/JUCE/blob/master/modules/juce_core/native/juce_android_JNIHelpers.cpp#L237
or maybe something needs updating for juce_gui_extra\native\juce_android_PushNotifications.cpp for struct JuceActivityNewIntentListener