I downloaded the ERP demo from here: https://www.telerik.com/support/code-library/erp-demo-application-for-winforms
After upgrading the projects to .NET 4.8 and running the application, the following exception is observed:
The full stack trace:
System.Data.Services.Client.DataServiceTransportException
HResult=0x80131509
Message=Unable to connect to the remote server
Source=Microsoft.Data.Services.Client
StackTrace:
at System.Data.Services.Client.HttpWebRequestMessage.GetResponse()
at System.Data.Services.Client.DataServiceContext.GetResponseHelper(ODataRequestMessageWrapper request, IAsyncResult asyncResult, Boolean handleWebException)
at System.Data.Services.Client.QueryResult.ExecuteQuery()
at System.Data.Services.Client.DataServiceRequest.GetQuerySetCount(DataServiceContext context)
at System.Data.Services.Client.DataServiceQueryProvider.ReturnSingleton[TElement](Expression expression)
at ERP.Client.PurchasesControl.Initialize() in C:\Users\dyordano\Downloads\009a20df-21b2-4e64-b129-eaf9e0a686f5_ERP-CS (1)\ERP.Client\CustomControls\Views\PurchasesControl.cs:line 48
at ERP.Client.BaseGridControl..ctor() in C:\Users\dyordano\Downloads\009a20df-21b2-4e64-b129-eaf9e0a686f5_ERP-CS (1)\ERP.Client\CustomControls\BaseGridControl.cs:line 49
at ERP.Client.PurchasesControl..ctor() in C:\Users\dyordano\Downloads\009a20df-21b2-4e64-b129-eaf9e0a686f5_ERP-CS (1)\ERP.Client\CustomControls\Views\PurchasesControl.cs:line 29
This exception was originally thrown at this call stack:
System.Net.Sockets.Socket.DoConnect(System.Net.EndPoint, System.Net.SocketAddress)
System.Net.ServicePoint.ConnectSocketInternal(bool, System.Net.Sockets.Socket, System.Net.Sockets.Socket, ref System.Net.Sockets.Socket, ref System.Net.IPAddress, System.Net.ServicePoint.ConnectSocketState, System.IAsyncResult, out System.Exception)
Inner Exception 1:
WebException: Unable to connect to the remote server
Inner Exception 2:
SocketException: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 65.52.19.99:80