Exception raised when trying to generate WSDL for Data Portal

Sameer posted on Wednesday, March 17, 2010

We are using Csla 3.8 to stand up a web application with an Application server (with data portal hosted in it) and a web server (with the web.config file pointed to the data portal in the application server). 

I seem to have done everything including the following:

1. Copied all the relevant dlls into a bin folder

2. Using IIS to host the data portal

3. Created a web.config file with the following Data Portal settings:

 

  <system.runtime.remoting>

    <application>

      <service>

        <wellknown mode="SingleCall" objectUri="RemotingPortal.rem" type="Csla.Server.Hosts.RemotingPortal, Csla"/>

      </service>

      <channels>

        <channel ref="http">

          <serverProviders>

            <provider ref="wsdl"/>

            <formatter ref="soap" typeFilterLevel="Full"/>

            <formatter ref="binary" typeFilterLevel="Full"/>

          </serverProviders>

        </channel>

      </channels>

    </application>

  </system.runtime.remoting>

 

 

When I try to access the wsdl by going to the URL 

http://localhost/ConnectorService/RemotingPortal.rem?wsdl

I get the following error page:

 

System.NullReferenceException: Object reference not set to an instance of an object.
   at System.Runtime.Remoting.MetadataServices.WsdlGenerator.RealSchemaType.PrintMessageWsdl(TextWriter textWriter, StringBuilder sb, String indent, ArrayList refNames)
   at System.Runtime.Remoting.MetadataServices.WsdlGenerator.PrintWsdl()
   at System.Runtime.Remoting.MetadataServices.WsdlGenerator.Generate()
   at System.Runtime.Remoting.MetadataServices.MetaData.ConvertTypesToSchemaToStream(ServiceType[] serviceTypes, SdlType sdlType, Stream outputStream)
   at System.Runtime.Remoting.MetadataServices.SdlChannelSink.GenerateSdl(SdlType sdlType, IServerResponseChannelSinkStack sinkStack, ITransportHeaders requestHeaders, ITransportHeaders responseHeaders, Stream& outputStream)
   at System.Runtime.Remoting.MetadataServices.SdlChannelSink.ProcessMessage(IServerChannelSinkStack sinkStack, IMessage requestMsg, ITransportHeaders requestHeaders, Stream requestStream, IMessage& responseMsg, ITransportHeaders& responseHeaders, Stream& responseStream)
   at System.Runtime.Remoting.Channels.Http.HttpHandlerTransportSink.HandleRequest(HttpContext context)
   at System.Runtime.Remoting.Channels.Http.HttpRemotingHandler.InternalProcessRequest(HttpContext context)

I am at my wits end on how to resolve this issue. Can someone please chime in and let me know if you see something that I am not doing right?

Thanks,

Sameer