Espresso Must run under a registering instrumentation

I want to use espresso classes outside of android test package. I added espresso with compile keyword into gradle file and I access espresso classes into normal app classes. But, When I run app, I get an exception as "android espresso Must run under a registering instrumentation."

Our Android studio 3.0.0 and espress 3.0.0.

Thanks.

Start with the Gradle file and the normal app classes that access Espresso, then compare that usage with the reported registering-instrumentation exception. Done means determining whether this setup is supported and identifying the relevant Android test boundary.

Written by the indexing model from the issue text.