Im studying for my 70-320 exam and i am working from Amit Kalani exam prep book but i can not get one of the examples to work.

When i add SoapDisplayExtension to the [WebMethod] like [WebMethod, SoapDisplayExtension] i get the follow error:-

An unhandled exception of type 'System.InvalidOperationException' occurred in system.web.services.dll

Additional information: Client found response content type of '', but expected 'text/xml'.

at this point:-

public Bug GetBug(int bugID) {
           object[] results = this.Invoke("GetBug", new object[] {
                       bugID});
           return ((Bug)(results[0]));
       }

I know that the webservice works because i can open it and test it in Internet Explorer, so now im stuck

Can anyone help
PLEASE

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