I am attempting to compile/run a sample WCF application from Juval Lowy's website (author of Programming WCF Services & founder of IDesign). The application is an example of a publish/subscribe 'traffic-light' application that requires using VS 2010/.Net 4. This is my first attempt at using anything other than VS 2008/Net 3.5.
Initially I recieved the following binding error:
"Configuration binding extension
'
system.serviceModel/bindings/
netOnewayRelayBinding' could not be
found."
This error appeared to be resolved by amending the .Net 4 machine.config file, to incorporate the following references from the .Net 2 machine.config file.
<xml>
<bindingElementExtensions>
<add name="tcpRelayTransport" type="Microsoft.ServiceBus.Configuration.TcpRelayTransportElement, Microsoft.ServiceBus, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
<add name="httpRelayTransport" type="Microsoft.ServiceBus.Configuration.HttpRelayTransportElement, Microsoft.ServiceBus, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
<add name="httpsRelayTransport" type="Microsoft.ServiceBus.Configuration.HttpsRelayTransportElement, Microsoft.ServiceBus, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
<add name="onewayRelayTransport" type="Microsoft.ServiceBus.Configuration.RelayedOnewayTransportElement, Microsoft.ServiceBus, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
<add name="webMessageEncoding" type="
System.ServiceModel.Configuration.WebMessageEncodingElement,
System.ServiceModel.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
<add name="context" type="
System.ServiceModel.Configuration.ContextBindingElementExtensionElement,
System.ServiceModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
<add name="byteStreamMessageEncoding" type="
System.ServiceModel.Configuration.ByteStreamMessageEncodingElement,
System.ServiceModel.Channels, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
<add name="discoveryClient" type="
System.ServiceModel.Discovery.Configuration.DiscoveryClientElement,
System.ServiceModel.Discovery, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
</bindingElementExtensions>
<bindingExtensions>
<add name="webHttpBinding" type="
System.ServiceModel.Configuration.WebHttpBindingCollectionElement,
System.ServiceModel.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
<add name="basicHttpContextBinding" type="
System.ServiceModel.Configuration.BasicHttpContextBindingCollectionElement,
System.ServiceModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
<add name="basicHttpRelayBinding" type="Microsoft.ServiceBus.Configuration.BasicHttpRelayBindingCollectionElement, Microsoft.ServiceBus, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
<add name="webHttpRelayBinding" type="Microsoft.ServiceBus.Configuration.WebHttpRelayBindingCollectionElement, Microsoft.ServiceBus, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
<add name="ws2007HttpRelayBinding" type="Microsoft.ServiceBus.Configuration.WS2007HttpRelayBindingCollectionElement, Microsoft.ServiceBus, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
<add name="netTcpRelayBinding" type="Microsoft.ServiceBus.Configuration.NetTcpRelayBindingCollectionElement, Microsoft.ServiceBus, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
<add name="netOnewayRelayBinding" type="Microsoft.ServiceBus.Configuration.NetOnewayRelayBindingCollectionElement, Microsoft.ServiceBus, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
<add name="netEventRelayBinding" type="Microsoft.ServiceBus.Configuration.NetEventRelayBindingCollectionElement, Microsoft.ServiceBus, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
<add name="wsHttpContextBinding" type="
System.ServiceModel.Configuration.WSHttpContextBindingCollectionElement,
System.ServiceModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
<add name="netTcpContextBinding" type="
System.ServiceModel.Configuration.NetTcpContextBindingCollectionElement,
System.ServiceModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
</bindingExtensions>
Unfortunately running the application results in the following security error:
An error occurred creating the
configuration section handler for
system.serviceModel/client: That
assembly does not allow partially
trusted callers.
(\TrafficLights\TrafficController\bin\Debug\TrafficController.vshost.exe.Config
line 4)
The sample source code is available for download at the following link: http://www.idesign.net/idesign/DesktopDefault.aspx?tabindex=-1&tabid=19&download=226
I know that Juval's code is not at fault here and that it must be something I'm doing wrong with my VS 2010 configuration. I have not been able to find a solution online. Could someone please steer me in the right direction as to how best to deal with this issue?
