Magento - SOAP-ERROR: Parsing WSDL

Question

I am with this error and unfortunately I can not solve the same.

Fatal error: Uncaught Soapfault Exception: [WSDL] SOAP-ERROR: Parsing WSDL: Couldn’t load from 'http://magento.cordeirosilva.adv.br/api/v2_soap?wsdl=1'

My code.

$proxy = new SoapClient('http://magento.cordeirosilva.adv.br/api/v2_soap?wsdl=1');

$sessionId = $proxy->login('xxxx', 'xxxxx'); $result = $proxy->catalogCategoryTree($sessionId); var_dump($result);

What am I doing wrong.