As you can see in the attachment , I was trying to follow the tutorial in the wiki as i just started with it.
But the function Rotate towards position as shown in the tutorial is not available in the app that I have installed through the official ppa given in the website in Ubuntu 15.04.
Hi,
You are creating a condition. But “Rotate toward” is an action. 
oops! Thank you for the solution! And sorry for the trouble!
You can mark it as closed!