Response is empty Response:= await(Client.RawInvokeAsync('IMyService.GetClients',[]));

Response is always empty. What wrong

-WebConnection is connected end URL=http://localhost:2001

-When go to browser: localhost:2001/MyService/GetClients data is load in the browser

-I have Define Service interface in 2 modules (definition and implementation)

-All service has been register

RegisterServiceType(TypeInfo(IMyService));

RegisterServiceType(TMyService);

procedure TForm1.LoadClients;
var
Client: TXDataWebClient;
Response: TXDataClientResponse;
begin
try
Client:= TXDataWebClient.Create(nil);
Client.Connection:=WebConnection;
Response:= await(Client.RawInvokeAsync('IMyService.GetClients',[]));
XDataWebDataSet1.SetJsonData(Response.Result);
XDataWebDataSet1.Open;
finally
FreeAndNil(Client);
end;
end;

Is this a duplicated of this question? XDataWebClient await only available in async procedure