error is service now while importing HPSM WSDL

Hi,

I'm importing HPSM wsdl in servicenow, when I'm clicking on generate SOAP message the below error is coming.

unable to load wsdl: java.lang.RunTimeExeption: java.net.UnknownHostExeption:XXXX: java.net.UnknownHostExeption:XXX

 

Anyone faced this kind of issue:-