Android Chromecast support MediaRouter drawable resource issue

Question

Recently began upgrading Google's CastCompanionLibrary from v2.5.2 to the latest v2.9.1. Apparently v2.5.2 relied on android-support-v7-mediarouter-v22.2.1, while latest v2.9.1 has a gradle dependency for mediarouter-v25.0.0. All is well, until this drawable resource seems to be missing in gradle-sync and/or gradle-compilation. "No resource found that matches the given value '@drawable/ic_media_route_off_mono_dark'". What are the alternatives, and what are the solutions? Please don't suggest, I should not be using a mediarouter library drawable resource in my Project code-base to begin with.