For Cordova OR Ionic Hybrid App
I have the very similar problem with my Ionic 1 Cordova Build after Integrating the Firebase Cloud Messaging ( FCM )
I fixed this issue by the following steps
So one fix will be: inside platforms/android open project.properties (Its a file ) , you will have something like this
cordova.system.library.1=com.google.android.gms:play-services-ads:+
cordova.system.library.2=com.google.firebase:firebase-core:+
cordova.system.library.3=com.google.firebase:firebase-messaging:+
Replace the
+
Sign with your target version number - like the following
cordova.system.library.1=com.google.android.gms:play-services-ads:9.0.0
cordova.system.library.2=com.google.firebase:firebase-core:9.0.0
cordova.system.library.3=com.google.firebase:firebase-messaging:9.0.0
Save the file
Then take build using
ionic cordova run android
I hope this will work for everyone