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

In Android Studio 2.3 and higher, There is Instant Run which may affect your code.

Disable Instant Run

File -> Settings -> Build, Execution, Deployment -> Instant Run

In my case it was working perfect when run from Android Studio but crashing when install from other sources