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 can wait more,or kill "adb.exe" process manually and click 'Restart'

The dialog has 3 options: Wait more, Restart and Cancel. But all of them gives me the same result, i.e. a message Waiting for ADB appears and I can't do anything with Android Studio.

I have to kill the program using windows task manager! I'm using windows 7.

Can anyone help me on this?

Answer 1

Go to

Tools > Android > (Uncheck) Enable ADB Integration (if studio hangs/gets stuck end adb process manually)

then,

Tools > Android > (Check) Enable ADB Integration

Answer 2

On my macbook pro, i was occasionally getting this in Android Studio. The following resolved it for me:

Open up a Terminal and, instead of using 'adb kill-server', use this:

$ killall adb 

wait a minute and it looks like Android Studio automatically restarts adb on it's own.