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I tried that before, but it made no difference. 
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I tried that before, but it made no difference.

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I have been working with Silverlight for about 4 months now, and I can never seem to get the SLSvcUtil to work correctly. Here is the command I am using, followed by the error. Has anyone seen this error before? What is going wrong?<br />
<br />
slsvcutil.exe <a href="http" rel="ugc">http</a>:<br />
//127.0.0.1:81/Services/SA<wbr />PServices.<wbr />svc?wsdl /out:&quot;C:\RDA\UI-Silverligh<wbr />t\Service<br />
&nbsp;References\SAPServiceRef2\<wbr />Reference.<wbr />cs&quot; /enableDataBinding /namespace:&quot;*,UI_Sil<br />
verlight.SAPServiceRef2&quot; /ct:System.Collections.Obj<wbr />ectModel.O<wbr />bservableC<wbr />ollection<br />
`1 /r:&quot;C:\Program Files (x86)\Microsoft Silverlight\4.0.60310.0\Sy<wbr />stem.Windo<wbr />ws.d<br />
ll&quot;<br />
<br />
Could not load type 'System.Runtime.CompilerSe<wbr />rvices.Typ<wbr />eForwarded<wbr />FromAtt<br />
ribute' 
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I have been working with Silverlight for about 4 months now, and I can never seem to get the SLSvcUtil to work correctly. Here is the command I am using, followed by the error. Has anyone seen this error before? What is going wrong?

slsvcutil.exe http:
//127.0.0.1:81/Services/SAPServices.svc?wsdl /out:"C:\RDA\UI-Silverlight\Service
 References\SAPServiceRef2\Reference.cs" /enableDataBinding /namespace:"*,UI_Sil
verlight.SAPServiceRef2" /ct:System.Collections.ObjectModel.ObservableCollection
`1 /r:"C:\Program Files (x86)\Microsoft Silverlight\4.0.60310.0\System.Windows.d
ll"

Could not load type 'System.Runtime.CompilerServices.TypeForwardedFromAtt
ribute' 

Error when using SLSvcUtil.exe to create a webservice proxy within SIlverlight. How do I fix this?

Windows Communication Foundation (WCF) is a tool used to implement and deploy a service-oriented architecture (SOA) to support distributed computing where services have remote consumers. It features a runtime and a set of APIs in the .NET Framework for building connected, service-oriented applications. Services typically have a WSDL interface (Web Services Description Language) that any WCF client can use to consume the service, regardless of which platform the service is hosted on. WCF implements many advanced Web services (WS) standards such as WS-Addressing, WS-ReliableMessaging, WS-Security, RSS Syndication Services, WS-Discovery, routing and better support for REST services.