Facebook Login with Codeigniter

Question

I am trying to put Facebook Login button on Codeigniter platform.

I have followed this procedure

http://www.dannyherran.com/2011/02/facebook-php-sdk-and-codeigniter-for-basic-user-authentication/

but I got this error

API Error Code: 100
API Error Description: Invalid parameter
Error Message: Requires valid redirect URI.

I used exactly same code that the website provided.

Can you tell me why I get this error message?

Answer 1

你有没有设置有效的redirect_uri？

'redirect_uri' => ''