java - import module package not exist -

i have imported module (squarecamera) have error whin

error:(26, 32) error: package com.desmond.squarecamera not exist 

this code :

import com.desmond.squarecamera.cameraactivity; ... public void launchcamera() {     intent startcustomcameraintent = new intent(this, cameraactivity.class);     startactivityforresult(startcustomcameraintent, request_camera); }