XML error parsing SOAP payload: Reserved XML Name

Question

I have a very simple web service that returns a string (hardcoded at that). I keep getting an error while parsing SOAP payload : Reserved XML Name.

I can view the WSDL n

Answer 1

In my code it was poorly formatted XML, as in the Portuguese language BR has very special characters, quotes, did not close the tag correctly. At the end of the code shows the return, an XML, made a check at this site: http://www.xmlvalidation.com/ then he went back to work.