Problem generating dotnet webservice code with BapiRet

Hello,

I'm writting some c# code to consume ecc6 webservice,I've written a lot that works but One of them not.

This WebService have a bapiret parameter that cause problem when compiling the c#code.

The error is:

An object reference is required for non-static field, method, or property

This error appears in references.cs

Tryed to generate via the way described in "How to Consume Entreprise Services with Microsoft.net 3.0 and Visual Studio 2005 (Boris Mueller) but the problem is the same...

Can Anyone Help Me?

Thanks,

Benjamin