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

Check if any service is listening on port 5037, and kill it. You can use lsof for this:

$ lsof -i :5037
$ kill 

Then try

$ adb start-server
* daemon not running. starting it now on port 5037 *
* daemon started successfully *

This solved my problem.