Hello everyone, I have a problem with the ImageEditor. When I load a picture and try to change it (like resize for example), I'm using the options Constrain proportions and Save as a copy in Page files and Quality high (even though replace original yields the same result). I click apply, and then the OK button. Now instead of getting a "save as" dialog I just get a dialog with this error message:

Compiler Error Message: CS0433: The type 'System.Tuple<T1,T2>' exists in both 'c:\Windows\Microsoft.NET\Framework\v4.0.30319\mscorlib.dll' and 'c:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\495c83ab\dae76742\assembly\dl3\4124893d\00b1cf5d_d639ce01\System.ComponentModel.Composition.DLL'

Source Error:

Line 31:                         <ItemTemplate>
Line 32:                             <li>
Line 33:                                 <asp:HyperLink runat="server" Target="_blank" Text="<%# ((Tuple<string, string>)Container.DataItem).Item1 %>" NavigateUrl="<%# ((Tuple<string, string>)Container.DataItem).Item2 %>" />

Any ideas on how to resolve this? I feel like I can't think of anything else :-(

For reference I am using CMS 7.1.2 but also tried on 7.0.1, my app-pool runs .NET framework v4.0, i'm running windows server 2008 R2 Standard 64bit. I've tried these browsers: IE10, IE9, chrome and firefox. 

The thing I tried that I had the highest hopes of working was this: 

http://world.episerver.com/Articles/Items/EPiServer-CMS-60-now-supporting-ASPNET-40/

also noted here:

http://blog.nansen.com/2012/02/tuple-episerver-fail.html

As far as I can understand the problem is that there are two version of "Tuple" in the System namespace, one from System.ComponentModel.Composition.dll and one from mscorlib.dll. But how to get around this I have no idea! :(

Is there some fix from EPiServer possibly?

Regards
/Jonas