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

Meanwhile the emulator is working again. I cannot definetly say what solved the problem. What It could be a combination of two things:

• Deleting the hidden ".android" folder under C:\Users... (Probably there was some malfunctioning automatically created code)
• Deleting and recreating the Path variable to the folder with adb.exe ( ...\sdk\platform-tools\;)

Finally it could be a Windows 8 issue which I don't understand.