private async Task RegisterWithFacebook() { try { var result = await _externalService.RegisterWithFacebook(); var userProfileNavigation = new UserProfileNavigation(result.UserId, result.AccessToken); await HostScreen.Router.Navigate.Execute(new RegisterUserProfileViewModel(userProfileNavigation, _hostScreen)); } catch (Exception ex) { _logger.Error(nameof(RegisterWithFacebook), ex); await _dialogService.PresentAlertAsync("Tittel", "Body"); } }