Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack trace available

Question

I tried using OkHttp and Picasso (following this answer) for disk caching of images that I was downloading from Firebase storage. Now, the app gives exceptions and crashes.

Answer 1

This error also occurs because of the differences in libraries' version specification that can lead to runtime errors. Always use same versions of libraries in build.gradle.
For example:

Use this:

implementation 'com.google.android.gms:play-services-location:11.6.0'
implementation 'com.google.android.gms:play-services-auth:11.6.0'

Instead of:

implementation 'com.google.android.gms:play-services-location:15.0.0'
implementation 'com.google.android.gms:play-services-auth:11.6.0'