I installed Silverlight 4 and now my C# projects that use some of the new .NET 4 classes like System.Threading.Parallel
and System.Numerics.BigInteger
don t appear to be present.
Have tried switching between selected frameworks in the project properties, and downloading and running repair on the .NET 4 SDK, but didn t resolve the issue.
Edit: Project act s like it s being compiled with .NET 3.5 SDK.