I am new to yii framework and creating a new test application. I installed [Extention]facebook-opengraph onto my test and got the following error. Notes: I only did the step mentioned in installation instruction, I did not attempt to make any fb-opengraph call yet.

I got the following error:


Alias "ext.yii-facebook-opengraph.SFacebook" is invalid. Make sure it points to an existing PHP file and the file is readable. "

I am attaching the screenshot of the page for more information. Thanks in advanced for helping.

hey im experiensing the same issue can someone help us or even teach us how to install this extension properly