Velocity in WF4

If I use Microsoft.ApplicationServer.Caching.Client and Microsoft.ApplicationServer.Caching.Core assembly I get exception: The type or namespace name 'ApplicationServer' does not exist in the namesp开发者_如何学Pythonace 'Microsoft' (are you missing an assembly reference?) .....\CacheUtil.cs

And I get Warning: The referenced assembly "Microsoft.ApplicationServer.Caching.Core, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL" could not be resolved because it has a dependency on "System.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" which is not in the currently targeted framework ".NETFramework,Version=v4.0,Profile=Client". Please remove references to assemblies not in the targeted framework or consider retargeting your project. WFReport

This occurs in a separate assembly with WF4. And I want run it from a separate assembly Asp.net web forms.I wont that everyone workflow would use common cache.(VS2010 .net 4.0)

What's wrong? How do I fix this?

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In WF4 assembly, in properties change Target framework: .NET Framework 4 Client Profile => .NET Framework 4.