Error: Could not find AppiumBootstrap.jar; please run 'grunt buildAndroidBootstrap'

Environment : Linux ubuntu 12.04
Appium : 1.3.4 ( installed using npm)
Java version : 7

I am running small calcultor script against android emulator. getting following error while ran the script. Help is appriciated.

Error Message:
Failed to start an Appium session, err was: Error: Could not find AppiumBootstrap.jar; please run ‘grunt buildAndroidBootstrap’
info: [debug] Error: Could not find AppiumBootstrap.jar; please run ‘grunt buildAndroidBootstrap’
at null. (/home/kamalakarv/.linuxbrew/lib/node_modules/appium/lib/devices/android/android.js:358:10)
at Object.oncomplete (fs.js:108:15)
info: [debug] Responding to client with error: {“status”:33,“value”:{“message”:"A new session co

i am having same error when i run test on mac and android real device, some one help…

okey finally i found one solution,
run this command ./reset.sh --android --verbose,
you have to set android for appium.