public async Task <IActionResult> Error(string errorId) { //return View(new ErrorViewModel { RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier }); var vm = new IdentityServer4.Quickstart.UI.ErrorViewModel(); // retrieve error details from identityserver var message = await _interaction.GetErrorContextAsync(errorId); if (message != null) { vm.Error = message; } return(View("Error", vm)); }