ADB not responding. You can wait more, or kill “adb.exe” … windows 8

Question

When I try to test my Android application with an android emulator as always I now suddenly get an error message. I\'m working with Windows 8. So far I tried the following thing

Answer 1

On OSX helped:

• Close Android Studio

• Kill all processess using 5037 port

  sudo lsof -i |grep 5037

  sudo kill PID_NUMBER

• Run adb devices from console

  adb devices