Cannot find System.Xaml?

Question

I have a VS2010 project that needs a reference to System.Xaml. I go to the Add Reference, search the .NET references and it's not there. :?

I double checked the GAC too, and no such luck.

I just can't figure out for the life of me why it's not on the machine. This machine has .NET 3.5 SP1 and .NET 4.0 installed.

I'd much rather there be a simple explanation for this problem and not have to resort to reinstalling the framework. T-T

Any thoughts? Much appreciated.

Answer 1

On my machine it's located at

C:\Windows\Microsoft.NET\Framework\v4.0.30319\System.Xaml.dll

and it's available in the add references dialog as well (checked in a .Net4 target project, which might be your issue here).

Answer 2

Your project is probably target .Net 3.5, which does not have this DLL.

Set the Framework Version in Project Properties.