Error in getting XML input stream: file after adding Business Rule

PROBLEM

After adding a Business Rule with service interface I got:

Error: Error in getting XML input stream: file:/D:/PATH/ing/xsd/this.xsd:  D:/PATH/ing/xsd/this.xsd (The system cannot find the path specified) among a great quantity of exceptions on the project when compiled.

SOLUTION

Check the WSDL for the service interface. It is pointing to a wrong location /ing/