What are possible reasons for this problem? I followed this totorial using HybridAuth and Laravel 4 to authenticate via LinkedIn.
I am getting this message: Authentication failed! LinkedIn returned an invalid Token.
Any Idea, maybe becauase of the localhost configuration?

**//Configuration Part**
<?php
return
array(
"base_url" => URL::to('http://localhost:8000/social/auth'),
"providers" => array (
"LinkedIn" => array (
"enabled" => true,
"keys" => array ( "key" => "xxx", "secret" => "xxx"),
"scope" => 'r_basicprofile, r_emailaddress'
)
),
// if you want to enable logging, set 'debug_mode' to true then provide a writable file by the web server on "debug_file"
"debug_mode" => false,
"debug_file" => "",
);
?>
At the LinkedIn Api I am getting following Keys:
Consumer Key / API Key: 75tgxxxasdfeulcip
Consumer Secret / Secret Key: JtOXIXasdfasdfgpyFvi7
OAuth 1.0a User Token: 7b5955fe-6afc-4120-b148-55casdfasdf
OAuth 1.0a User Secret: c7824d63-46c2-4549-bce1-8f5casdfasdf
In the HybridConfig I am using Consumer Key & Secret?! Do I have to use Oauth1.0a in the config Array?
Update: I was ending up using Oauth2-Client.
best M