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I am trying to run an asp.net application that has been created in Visual Studio 2013 in Visual Studio 2015, but I am having a lot of build errors. All errors are in the two website projects and can be traced back to the following error:

CS0234 The type or namespace name 'Linq' does not exist in the namespace 'System' (are you missing an assembly reference?)

All projects are being build using .net4.0 or higher, but still I recieve this error. When the project is build in vs2013 everything builds fine.

<compilation debug="true" targetFramework="4.5">

Does someone know what could be wrong here?

Soner Gönül
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Jerodev
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2 Answers2

0

Add this code in Configuration file.

<compilation debug="false">
<assemblies>
<add assembly="System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
<add assembly="System.Xml.Linq, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
<add assembly="System.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.Web.Extensions.Design, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
</assemblies>
</compilation>
user2148124
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You could try adding;

<add assembly="System.Data.Linq, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>

To your Web.Config file.

James Michael Lucas
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