ADB not responding. You can wait more,or kill “adb.exe” process manually and click 'Restart'

Question

I have installed Android Studio. Then I have updated the Android SDK. Now when I start Android Studio, this message pops up:

ADB not responding. You c

Answer 1

I ran into this problem and tried a number of solutions on my Mac without any success. I finally got to work with the commands below:

$ rm -rf ~/.android
$ killall adb
$ adb devices

Note that rm -rf ~/.android will remove any AVDs that you have configured, so don't take this step lightly. Personally I had to though and I'm not sure why. Hopefully this helps someone.