PHPUnit on OSX10.8

I recently came across the below phpunit error after upgrading to osx10.8 mountain lion. PHP Warning: require_once(File/Iterator/Autoload.php): failed to open stream: No such file or directory in /usr/local/share/pear/PHPUnit/Autoload.php on line 45 PHP Fatal error: require_once(): Failed opening required ‘File/Iterator/Autoload.php’ (include_path=’.:/usr/lib/php/pear’)…