Erreur suivante lors de l'appel à new SoapClient en PHP

[06-Nov-2016 14:21:43 UTC] PHP Fatal error: SOAP-ERROR: Parsing WSDL: Couldn't load from 'config/http://test.com/test?wsdl' : failed to load external entity "config/http://test.com/test?wsdl"
in C:\Users\seven\iDrive\Web\flexivol\OdigeoWebServiceRequester.class.php on line 106
[06-Nov-2016 14:21:43 UTC] PHP Warning: SoapClient::SoapClient(): I/O warning : failed to load external entity "config/http://test.com/test?wsdl" in C:\test.php on line 106