Developers

Hi,

I need to fetch contact information from xconnect (List manager) , using  below code snippet to fetch specific contact detail : 

using (Sitecore.XConnect.Client.XConnectClient client = Sitecore.XConnect.Client.Configuration.SitecoreXConnectClientConfiguration.GetClient())
            {
                try
                {
                    var reference = new Sitecore.XConnect.ContactReference(Guid.Parse("B9814105-1F45-E611-82E6-34E6D7117DCB"));

                    Contact contact = client.Get<Contact>(reference, new Sitecore.XConnect.ContactExpandOptions() { });
                }
                catch (XdbExecutionException ex)
                {
                    // Manage exceptions
                }
            }
        }
    

sitecore documentation : https://doc.sitecore.com/developers/93/sitecore-experience-platform/en/get-contacts.html 

Getting error on line : 

Sitecore.XConnect.Client.Configuration.SitecoreXConnectClientConfiguration.GetClient() 

Error message : 
The Type initializer for sitecore.XConnect.CollectionM.Model.CollectionModel threw an exception 


Any blog or hint help 

Thank you