class under the component/ directory, and it will then fallback to the framework/ directory if not found before giving up. Located at vendor/ composer/ ClassLoader. I keep getting a Class ' PHPassion\ Edmunds\ EdmundsSdk' not found exception. directory paths and have composer dump- autoload ed after every change. Using features of PHP that are not backwards compatible with PHP 5. The Composer autoloader does not require following the PSR- 0 or. Class not found Error when booting a custom package.