Uncaught Error: Could not find module `ember-simple-auth/authenticators/base

I am using ember-cli-simple-auth and ember-cli-simple-auth-firebase packages and getting the following error:

loader.js:218 Uncaught Error: Could not find module ember-cli-simple-auth/authenticators/base imported from my-auth-test/authenticators/firebase

Any idea how I can fix this issue?

Thanks in advance