CODEWITHSUNDEEP
c#asp.net.net-3.5visual-studio-2013
Mark Kurkowski
Mark Kurkowski

Reputation: 231

'ServiceModel' does not exist in namespace 'System'. When I try to add a reference, it says it's already referenced

I'm using Visual Studio Professional 2013, and I'm trying to import an ASP.NET web site whose files were on SVN so that I can run and debug the website locally. I created a new web site and changed the target framework to .NET 3.5 (that's what the guys who built the website told me it was in). So, I copied over the files to the website directory, and added them into the solution using "add->existing web site".

I get this error specifically:

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

So, I think to myself, I'll just add a reference to ServiceModel, no big deal. So, I right-click the project, go to add reference, look for System.ServiceModel under Assemblies->Framework, check it, and click ok. Then this happens:

The Web site is already referencing the assembly 'System.ServiceModel'.

These things might help:

Upvotes: 8

Views: 17458

Answers (4)

arshia kh
arshia kh

Reputation: 11

you should add these packages -> <PackageReference Include="System.ServiceModel.Duplex" Version="4.7.*" /> <PackageReference Include="System.ServiceModel.Http" Version="4.7.*" /> <PackageReference Include="System.ServiceModel.NetTcp" Version="4.7.*" /> <PackageReference Include="System.ServiceModel.Security" Version="4.7.*" />

Upvotes: 1

RaSor
RaSor

Reputation: 877

  • Delete Service Ref
  • Unload project
  • Delete <RootNamespace>MyProject</RootNamespace>
  • Reload project
  • Re-add Service Ref
  • Build

Upvotes: 0

Abdeloihab Bourassi
Abdeloihab Bourassi

Reputation: 975

Add a reference to the assembly System.ServiceModel. Select Project-> Add Reference and then select the assembly name.

Upvotes: 7

asimolmez
asimolmez

Reputation: 760

Copy System.ServiceModel.dll from "C:\Windows\Microsoft.NET\Framework\v4.0.30319" to project bin folder.

Upvotes: 2

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