SugarCRM Relationship Error - Solved

Warning: array_key_exists() [function.array-key-exists]: The second argument should be either an array or an object in E:\SugarCRM\modules\Relationships\Relationship.php

If you get error like this means your cache is having a problem. Delete all the files and rebuild the cache twice. It is also wise to copy the cache directory from a working SugarCRM instance and rebuid the cache twice.

Enjoy.