Unable to Login to Dynamics CRMOrganizationWebProxyClient is null

 While trying to connect to Dynamics CRM Online via a console application, I was having below error

Unable to Login to Dynamics CRMOrganizationWebProxyClient is nullOrganizationWebProxyClient is nullOrganizationServiceProxy is nullOrganizationServiceProxy is nullOrganizationWebProxyClient is nullOrganizationServiceProxy is nullOrganizationWebProxyClient is nullOrganizationWebProxyClient is nullOrganizationServiceProxy is nullOrganizationServiceProxy is nullOrganizationServiceProxy is null

Below is a specific code that works perfectly fine

public static IOrganizationService getProdOrgService()

{

IOrganizationService organizationService = null;

 

ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12 | SecurityProtocolType.Tls11 |                                                         SecurityProtocolType.Tls;

ClientCredentials clientCredentials = new ClientCredentials();

clientCredentials.UserName.UserName = ConfigurationManager.AppSettings["D365Username"];

clientCredentials.UserName.Password = ConfigurationManager.AppSettings["D365Password"];

organizationService = (IOrganizationService) new OrganizationServiceProxy(new Uri(ConfigurationManager.AppSettings["orgserviceUrl"]),      null, clientCredentials, null);

 

 

return organizationService;

}

Add the following to your AppSettings

<add key="D365Username" value="vipin@vjcity.com" />

<add key="D365Password" value=" vjcity " />

<add key="orgserviceUrl" value="https:// vjcity.crm.dynamics.com//XRMServices/2011/Organization.svc" />

Here are some other links for Troubleshooting and learning:

·       Plugin in Dynamic 365 CRM

·       Connect to Dynamic 365 CRM from Console App using Azure Authentication

·       Could not load file or assembly 'System.Net.Http, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies

·       Unable to Login to Dynamics CRMOrganizationWebProxyClient is null

·       Assembly 'Microsoft.Crm.Sdk.Proxy' with identity 'Microsoft.Crm.Sdk.Proxy, Version=9.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' uses 'Microsoft.Xrm.Sdk, Version=9.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' which has a higher version than referenced assembly 'Microsoft.Xrm.Sdk' with identity 'Microsoft.Xrm.Sdk, Version=8.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'

·       Could not load file or assembly 'Microsoft.Xrm.Sdk, Version=9.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference.

·       Could not load file or assembly 'Microsoft.Xrm.Sdk, Version=6.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies