CRM 2011 Dicovery Service FaultException - crm

Question

I have asked the same question at http://social.microsoft.com/Forums/en-US/crmdevelopment/thread/d5d00302-8f7b-4efc-873b-c54b3e29749d but didn't get an answer. So, I will give another try at stackoverflow.
I was running the example code from the crm 2011 training kit.
var creds = new ClientCredentials();
var dsp = new DiscoveryServiceProxy( dinfo, creds);
dsp.Authenticate();
var orgRequest = new RetrieveOrganizationRequest();
var response = dsp.Execute(orgRequest);
var orgResponse = response as RetrieveOrganizationsResponse;
if (orgResponse != null)
comboOrgs.ItemsSource = orgResponse.Details;
At the line of var response = dsp.Execute(orgRequest), I got the FaltException`1, the detailed message is as follows
System.ServiceModel.FaultException`1 was unhandled
Message=organizationName
Source=mscorlib
Action=http://schemas.microsoft.com/xrm/2011/Contracts/Discovery/IDiscoveryService/ExecuteDiscoveryServiceFaultFault
StackTrace:
Server stack trace:
at System.ServiceModel.Channels.ServiceChannel.HandleReply(ProxyOperationRuntime operation, ProxyRpc& rpc)
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)
Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
at Microsoft.Xrm.Sdk.Discovery.IDiscoveryService.Execute(DiscoveryRequest request)
at Microsoft.Xrm.Sdk.Client.DiscoveryServiceProxy.Execute(DiscoveryRequest request)
I was able to access the Discovery.svc file using browser. So the server url should be correct. Is this an authentication problem?

Answer 1

Is this for Microsoft CRM Online or on-premise? For Online, I know you would want to use something along the lines of what is found in the SDK -
// Connect to the Discovery service.
// The using statement assures that the service proxy will be properly disposed.
using (DiscoveryServiceProxy _serviceProxy = new DiscoveryServiceProxy(serverConfig.DiscoveryUri,
serverConfig.HomeRealmUri,
serverConfig.Credentials,
serverConfig.DeviceCredentials))
{
// You can choose to use the interface instead of the proxy.
IDiscoveryService service = _serviceProxy;
#region RetrieveOrganizations Message
// Retrieve details about all organizations discoverable via the
// Discovery service.
RetrieveOrganizationsRequest orgsRequest =
new RetrieveOrganizationsRequest()
{
AccessType = EndpointAccessType.Default,
Release = OrganizationRelease.Current
};
RetrieveOrganizationsResponse organizations =
(RetrieveOrganizationsResponse)service.Execute(orgsRequest);
}
There are overloads for the DiscoveryServiceProxy class but if you provide some more details on what you are trying to connect to, I think it will narrow it down.