React-Native, Android, Genymotion: ADB server didn't ACK

Question

I am working with React-Native, Android, and Genymotion on Mac. When I run react-native run-android I get this lines at the end of the launch operation:

Answer 1

I had the same thing while I tried to run from expo UI. Did the same things, as described in answers, but app was not running. When once tried run exp android from command line (in the project folder), application ran successfully and next times runs from Expo UI was successfully.