I migrated an asp.net app to 4.0. Now I am getting an error "The type or namespace name 'IQueryable' could not be found". The reference to System.Linq is invalid and I can't find it in the reference list. Where did System.Linq go?
+7
A:
Make sure you are referencing System.Core.dll in your project. The IQueryable<T> type is defined in that assembly (just as it was in .NET 3.5).
Andrew Hare
2010-05-23 21:47:36
I had to add it manually in the csproj file because I was getting the error below when I was adding it in VS. Something has changed from 3.5 to 4.0 because the solution ran fine in 3.5(A reference to 'System.Core' could not be added. This component is already automatically referenced by the build system.)
Tony_Henrich
2010-05-25 06:02:28
+1
A:
Make sure you have a reference to System.Core.dll in your project - I believe System.Linq resides there.
mjd79
2010-05-23 21:47:43