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Missing reference to System.Data.Linq

Posted on 2014-01-21
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Last Modified: 2014-01-21
I have a newly created Website project in VS 2012. It indicates the Application Type is Class Library. I have the following code in my login module:

Imports GCF2014
Imports System.Data
Imports System.Data.Linq

Partial Class Account_Login
    Inherits System.Web.UI.Page

    Dim dc As gcfDataContext = New gcfDataContext

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
.

.
.
        End If

    End Sub

I get the following error when I try to run this module:

Compiler Error Message: BC30007: Reference required to assembly 'System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' containing the base class 'System.Data.Linq.DataContext'. Add one to your project.

Source Error:


 

Line 6:      Inherits System.Web.UI.Page
Line 7:  
Line 8:      Dim dc As gcfDataContext = New gcfDataContext
Line 9:  
Line 10:     Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
 

I have System.Data.Linq in my list of references. I am running as ASP.Net 4.0.

Why am I getting this error?
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Comment
Question by:steve_webber
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4 Comments
 
LVL 20

Expert Comment

by:Rikin Shah
ID: 39796769
Hi,

Go to solution explorer -> References -> Right Click -> Add Reference -> .Net -> System.Data.Linq

Tada!!
0
 

Author Comment

by:steve_webber
ID: 39796772
I've already done that (several times, deleting the previous existin gone first).
0
 
LVL 20

Accepted Solution

by:
Rikin Shah earned 2000 total points
ID: 39796785
Hi,

Let me guess...

1. Does your solution has 2 or more projects?
2. Have you tried cleaning the solution and re-add the reference?
3. Make sure you have target framework .net v4.0 or higher.

If nothing works-
Add below to your web config in assemblies section-
<add assembly="System.Data.Linq, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>

Something like this-
<compilation debug="true">
			<assemblies>
				<add assembly="System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
				<add assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
				<add assembly="System.Xml.Linq, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
				<add assembly="System.Data.DataSetExtensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
				<add assembly="System.Data.Linq, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
			</assemblies>
		</compilation>

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Author Closing Comment

by:steve_webber
ID: 39796797
Fast and accurate response.
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