Error "AdbCommandRejectedException: device not found" in Eclipse using Android emulator

Question

I've tried to change the build of an application, and now eclipse doesn't work.

There is nothing in the console, and when I launch the debug, there is nothing on the log.

I just got this message :

[2011-03-31 11:22:58 - Logcat]device not found
com.android.ddmlib.AdbCommandRejectedException: device not found
    at com.android.ddmlib.AdbHelper.setDevice(AdbHelper.java:736)
    at com.android.ddmlib.AdbHelper.executeRemoteCommand(AdbHelper.java:373)
    at com.android.ddmlib.Device.executeShellCommand(Device.java:284)
    at com.android.ddmuilib.logcat.LogPanel$3.run(LogPanel.java:527)

Answer 1

Try adb kill-server and adb start-server to restart the adb. It can be found in your android sdk directory, subfolder plattform-tools.

Answer 2

Restart the eclipse once...and try again

...

Answer 3

on-off your USB debugging on mobile phone or your AVD maybe help you solve this problem. This method is work for me :)

Answer 4

I encountered a similar issue on Linux. It turned out that my adb server was running under my user account, so running the following fixed the issue:

sudo adb kill-server
sudo adb start-server

Answer 5

I also faced same problem. Go to developers Option and then Revoke USB debugging authorization.