ADB server didn't ACK

C:\Dev\Android\android-sdk\platform-tools>adb kill-server

C:\Dev\Android\android-sdk\platform-tools>adb start-server

* daemon not running. starting it now on port 5037 *

ADB server didn't ACK

* failed to start daemon *

If this happen, go to task manager and kill adb.exe 

then , restart adb server.

also, eclipse need to be restarted if you are using it.

--
Feng