I get this exception:

Exception thrown: ‘System.Net.Http.HttpRequestException’ in mscorlib.dll

An error occurred while sending the request. - System.Net.Http.HttpRequestException

The program ‘a10796] Test.vshost.exe’ has exited with code -1 (0xffffffff).

The code of Airtable.net in github is at link: GitHub - ngocnicholas/airtable.net: Airtable .NET API Client

The code I wrote for using of Airtable.net APIs:

private async void GetRecord(string id)

{

using (AirtableBase airtableBase = new AirtableBase(appKey, baseId))

{

Task task= airtableBase.RetrieveRecord(appTable, id);

            AirtableRetrieveRecordResponse response = null;

            try

            {

                response = await task;

            }

            catch (System.Net.Http.HttpRequestException ex)

            {

                Console.WriteLine(ex.Message.ToString() + " - " + ex.GetType());

                //throw;

            }



            if (!response.Success)

            {

                string errorMessage = null;

                if (response.AirtableApiError is AirtableApiException)

                {

                    errorMessage = response.AirtableApiError.ErrorMessage;

                }

                else

                {

                    errorMessage = "Unknown error";

                }

                Console.WriteLine(errorMessage);

            }

            else

            {

                var record = response.Record;

                // Do something with your retrieved record.

                // Such as getting the attachmentList of the record if you

                // know the Attachment field name

                var attachmentList = response.Record.GetAttachmentField(id);

                foreach (var attachmentField in attachmentList)

                {

                    Console.WriteLine(attachmentField.ToString());

                }

            }

        }

    }

I catch exception at this line:

catch (System.Net.Http.HttpRequestException ex).

Why the trying to request to airtable database fails?