Movement by mouse click

Getting Started
1

hi

i tried 1st unity3d tutorial, now i want to create movement of ball by mouse click.
i used script from here http://wiki.unity3d.com/index.php/Click_To_Move_C but it doesnt work.
need advise

2

Found solution here

http://www.thegamecontriver.com/2014/10/move-to-mouse-click-touch-position-unity.html