Jasper Reports is a superb open source alternative to Crystal Reports. It\'s great for single page PDF pages such as letters & invoices to multi-page reports. However it\'s
I ran into the same problem not in mono but using Visual Studio. I always get error 500. That's because the answer of jasperserver according to the microsoft/mono code is not SOAP complient. ASP.NET expects a text/xml structure, and jasperserver sends a multipart structure back with the xml as the first part and the report as an attachment in the second part.
ASP.NET gives an exception on that. I am now trying to do a similar thing using REST, but I've not succeeded so far.
Addition: 2012-03-09 Figured out using REST, see Get report from jasperserver using REST webservice and asp.net C#
By the way, that is also working in Mono! (I develop in Visual Studio, but deploy on Mono)