ERROR - The type okio.ByteString cannot be resolved. It is indirectly referenced from required .class files

Problem


The type okio.ByteString cannot be resolved. It is indirectly referenced from required .class files

Cause

A class that you use needs an other class ( okio.ByteString) that is not on the classpath.

Resolution


Add the jar ( okio-xxxxxx.jar) containing okio.ByteString in the class / build path.