Dynamics Community Forum Thread Details

Cannot connect to Dynamics CRM Online instance

Hello All,

I'm new to CRM development and this is my first post here. I hope to resolve my issue with your help.

So, here's some details:

I created a sample app to connect to CRM online environment but I'm getting the bellow exception.

Value cannot be null. Parameter name: identityProvider


at Microsoft.Xrm.Sdk.Client.ServiceConfiguration`1.AuthenticateOnlineFederationInternal(AuthenticationCredentials authenticationCredentials) at Microsoft.Xrm.Sdk.Client.ServiceConfiguration`1.Authenticate(AuthenticationCredentials authenticationCredentials) at SampleApplication.Controllers.HomeController.GetProxy[TService,TProxy](IServiceManagement`1 serviceManagement, AuthenticationCredentials authCredentials) at SampleApplication.Controllers.HomeController.Index()

The strange thing is that it is working as expected on one of the servers we have, but throws the exception I mentioned when accessed from the other. Both machines are running Windows Server 2012 with Windows Identity Foundation 3.5 installed. I'm using Microsoft.XRM.SDK v8.0.0.0 with .NET 4.5.2. Here's the code block:

var orgServiceManagement = ServiceConfigurationFactory.CreateManagement<IOrganizationService>(new Uri("https://************.crm4.dynamics.com/XRMServices/2011/Organization.svc"));
var endpointType = orgServiceManagement.AuthenticationType;

var authCredentials = GetCredentials(endpointType, "*******@********.onmicrosoft.com", "**********");

var organizationProxy = GetProxy<IOrganizationService, OrganizationServiceProxy>(orgServiceManagement, authCredentials);

organizationProxy.EnableProxyTypes();
organizationProxy.Authenticate();

//rest of the code...

And here's the essential part of the two used methods:

private static AuthenticationCredentials GetCredentials(AuthenticationProviderType endpointType, string username, string pass)
{
    var authCredentials = new AuthenticationCredentials();

    authCredentials.ClientCredentials.UserName.UserName = username;
    authCredentials.ClientCredentials.UserName.Password = pass;
    authCredentials.SupportingCredentials = new AuthenticationCredentials();
    authCredentials.SupportingCredentials.ClientCredentials = Microsoft.Crm.Services.Utility.DeviceIdManager.LoadOrRegisterDevice();

    return authCredentials;
}

private static TProxy GetProxy<TService, TProxy>(IServiceManagement<TService> serviceManagement, AuthenticationCredentials authCredentials)
where TService : class
where TProxy : ServiceProxy<TService>
{
    Type classType = typeof(TProxy); 
    if (serviceManagement.AuthenticationType != AuthenticationProviderType.ActiveDirectory)
    {
        var tokenCredentials = serviceManagement.Authenticate(authCredentials);
        return (TProxy)classType
                      .GetConstructor(new Type[] { typeof(IServiceManagement<TService>), typeof(SecurityTokenResponse) })
                      .Invoke(new object[] { serviceManagement, tokenCredentials.SecurityTokenResponse });
    } 

    //other staff here
}

I was adviced to use the new and simpler approach with Microsoft.Xrm.Tooling.Connector.CrmServiceClient but the result was almost the same:

Object reference not set to an instance of an object.

at Microsoft.Xrm.Tooling.Connector.CrmServiceClient.Execute(OrganizationRequest request)

I would appreciate any help! Thanks!

EDIT: Here's the simplified connection code and connectionString

try
{
	CrmServiceClient service = new CrmServiceClient(ConfigurationManager.ConnectionStrings["Crm"].ConnectionString);
	var orgService = (IOrganizationService)service.OrganizationWebProxyClient != null ? 
							 (IOrganizationService)service.OrganizationWebProxyClient : 
							 (IOrganizationService)service.OrganizationServiceProxy;

	var whoAmI = orgService.Execute(new WhoAmIRequest());	
}
catch (Exception ex)
{
	//Error handling goes here
}


 <add name="Crm" connectionString="AuthType=Office365;Url=https://******.crm4.dynamics.com;Username=*****;Password=****" />

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