Question

I have a method that looks like this :

Function ExecuteAndLogError(Of TResult)(ByVal code As Func(Of TResult), _
                                        ByVal sql As String, _
                                        Optional ByVal parameters As SqlParameterCollection = Nothing) As TResult
End Function

I am getting this compiler error :

‘Func’ is ambiguous in the namespace ‘System’.

This is the line that has the problem

Func(Of TResult)

These are my references for the website

This is what I’m importing

• Imports Microsoft.VisualBasic
• Imports System.Data.SqlClient
• Imports System.Data
• Imports System.Diagnostics
• Imports System.Linq

Did I forget to import something or add a reference to something?

More Info

I recently upgrade my website from Visual Studio 2005 to Visual Studio 2008.

Answer 1

Here is what I did to fix this problem.

I went to the object explorer in Visual Studio and searched for Func. I had two references to everything in System because I had imported a library, Newtonsoft.Json. Because I had upgraded my website from 2005 to 2008 Newtonsoft was still referencing the 2.0 framework. So, I just deleted my reference to Newtonsoft and that fixed my problem.