I am facing a strange problem. The eclipse is deteting the same device multiple times and thus is unable to run the project showing error as :
Failed to install MetRoute.apk on device 'EC21BF384504FC4E': adb rejected install command with: more than one device
com.android.ddmlib.AdbCommandRejectedException: more than one device
update : It is not needed to restart/close Eclipse
As told in comments by Ved Praksh, the solution is:
End all adb processes from task manager as well.. Then:
In cmd, adb kill-server --> adb start-server --> adb devices
Then restart eclipse.
Most probably it will show only one device this time.