NoSuchMethodError: No virtual method zzEq()Z in class Lcom/google/firebase/FirebaseApp;

Question

Below is the fatal error that I keep getting on my App. I am trying to run a chat messenger feature on my application using Firebase. It was running however it has since kept cr

Answer 1

I had a similar problem while reading/writing to firebase database this small change worked for me. Try removing unnecessary firebase dependencies and make sure you use the same version for all the firebase dependencies for those that you use. In my case I changed my firebase dependencies from:

implementation 'com.google.firebase:firebase-firestore:11.8.0'
implementation 'com.google.firebase:firebase-database:16.0.1'
implementation 'com.google.firebase:firebase-core:16.0.0'

to these:

implementation 'com.google.firebase:firebase-firestore:11.8.0'
implementation 'com.google.firebase:firebase-database:11.8.0'
implementation 'com.google.firebase:firebase-core:11.8.0'

I'm sure you might have spent a lot of time trying to fix this. Might as well turn out worth a shot :)