java.lang.NoClassDefFoundError: Failed resolution

Question

java.lang.NoClassDefFoundError: Failed resolution of: Lcom/google/android/gms/common/api/Api$zzf;

I am getting above error at run time.

I set multiDexEnabled true, but I'm still getting the error.

I am not able to find reason behind it. There is no correct solution for this question.

Answer 1

try to add like this in the project gradle file like this

allprojects {
    repositories {
    //start here
    configurations.all {
 resolutionStrategy.eachDependency { DependencyResolveDetails details ->
   def requested = details.requested
       if (requested.group == 'com.google.android.gms') {
          details.useVersion '12.0.1'
       }
       if (requested.group == 'com.google.firebase') {
          details.useVersion '12.0.1'
         }
       }
     }
    //end
     jcenter()
       maven {
         url "https://maven.google.com"
       }
     }
 }

Answer 2

I have also faced this issue while adding firebase auth in my project and issue was I have not added google auth as dependency in build.gradle. Adding below dependencies solved the problem

implementation 'com.google.android.gms:play-services-auth:16.0.0'
implementation 'com.google.firebase:firebase-auth:16.0.3'

Answer 3

You need to add the following to your gradle file dependencies:

compile 'com.applozic.communication.uiwidget:mobicomkitui:5.8.4'

and sync gradle.

Answer 4

I had this error due to dependency conflicts in Firebase. In particular, dependencies of the module Auth. In this case, updating the dependencies should solve the problem.