[IronPython] IPy 2.7 successfully built for .NET 3.5, but problem w. indirect v4 dependencies

Dino Viehland dinov at microsoft.com
Tue Mar 29 19:29:51 CEST 2011

It sounds like you need to re-build your own DLLs (or whatever SPTools is) to run against .NET 3.5 instead of .NET 4.0.

From: users-bounces at lists.ironpython.com [mailto:users-bounces at lists.ironpython.com] On Behalf Of Jaromír Matýšek
Sent: Monday, March 28, 2011 8:09 AM
To: ironpy at googlegroups.com
Subject: [IronPython] IPy 2.7 successfully built for .NET 3.5, but problem w. indirect v4 dependencies

I've suceeded building 2.7 for .NET 3.5 (I'm using it in SharePoint, so there's no way to use .NET 4) and it works, using v2release configuration. I've built IronPython, IronPython.Modules, Microsoft.Dynamic, Microsoft.Scripting and Microsoft.Scripting.Core dlls.

However, when I reference my class library (which is referencing my custom-built 2.7 dlls) from another solution and try to compile, I get several instances of the following warning and of course errors wherever I'm using some of my class library functions:

The primary reference "SPTools ... " could not be resolved because it has an indirect dependency on the .NET Framework assembly "mscorlib, Version=, Culture=neutral, PublicKeyToken=b77a5c561934e089" which has a higher version "" than the version "" in the current target framework.    C:\Windows\Microsoft.NET\Framework\v4.0.30319\Microsoft.Common.targets

I've now spent a day and half trying to get rid of this problem. I've combed through the project files - they're all switched to v2, there's nothing even vaguely v4 related, it all compiles too, the problem remains.

I'd be very grateful for any ideas.

Jaromír Matýšek
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