When you get this message - "ADB not responding. You can wait more or kill adb ..." just use this command :
fuser 5037/tcp
and after executing that command you will receive some PID (if your adb is still running) :
sudo kill -9 PID
ADB Not Responding in Intellij IDEA
2014-12-21T21:54:00Z
GarciaPL
Android|Java|