Warning: require_once(C:\xampp\htdocs\admin\vendor\league\oauth1-client\resources\examples/../../vendor/autoload.php): failed to open stream: No such file or directory in C:\xampp\htdocs\admin\vendor\league\oauth1-client\resources\examples\xing.php on line 3

Fatal error: require_once(): Failed opening required 'C:\xampp\htdocs\admin\vendor\league\oauth1-client\resources\examples/../../vendor/autoload.php' (include_path='C:\xampp\php\PEAR') in C:\xampp\htdocs\admin\vendor\league\oauth1-client\resources\examples\xing.php on line 3