Cannot Run Chromecast App

I am trying to the exact sample app (https://github.com/googlecast/CastHelloText-android) with my own package name, put the receiver code on my server. I registered the app, and my

Solution 1:

Most likely your device was not correctly whitelisted. Did you check the box to send its serial number when you were setting up your chromecast? See this post in case it helps ...