Warning: include_once(//wp-admin/includes/admin.php) [function.include-once]: failed to open stream: No such file or directory in /xmlrpc.php on line 42

Warning: include_once() [function.include]: Failed opening '//wp-admin/includes/admin.php' for inclusion (include_path='.:/:/usr/local/php/pear5') in /xmlrpc.php on line 42
XML-RPC server accepts POST requests only.