Xamarin iOS issue xct:eventtocommandbehavior not found in xmlns #11628

omkarchoudhari created one year ago

Hello,

I am using MVC Jquery Template (Version 12.0.0) with .Net (version 7) and Xamarin for Android & iOS. This is a single Tenant application - only with Default Tenant.

My query is,

In iOS real device(iPhone 14 and Iphone13) when I am trying to run my application in debug mode (in release mode as well), I am getting the following error;

"InnerException {Xamarin.Forms.Xaml.XamlParseException: Position 162:10. Type xct:EventToCommandBehavior not found in xmlns http://xamarin.com/schemas/2020/toolkit at Xamarin.Forms.Xaml.CreateValuesVisitor.Visit (Xamarin.Forms.Xaml.ElementNode node, Xamarin.Forms.Xaml.INode …} Xamarin.Forms.Xaml.XamlParseException"

But it is working in an iOS emulator, the only problem is with a real device. Is there any solution for the same? I need the help ASAP.

**Notes: **

Added device UDID in Developer Account and uploaded Provision Certificate in iOS project
Xamarin.Forms -5.0.0.2578
Xamarin.Essentials-1.7.6
Xamarin.CommunityToolkit - 2.0.6

Code Snippets:

In LoginView.Xaml <ContentPage xmlns="http://xamarin.com/schemas/2014/forms" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" x:Name="LoginPage" xmlns:xct="http://xamarin.com/schemas/2020/toolkit" x:Class="IMS.Views.LoginView" BackgroundColor="{StaticResource LoginBackgroundColor}" base:ViewManager.AutoWireViewModel="true" Title="{extensions:Translate LogIn}"> . . . . <ContentPage.Behaviors> <xct:EventToCommandBehavior EventName="Appearing" Command="{Binding PageAppearingCommand}" /> </ContentPage.Behaviors> </contentPage>

In LoginViewModel:

public class LoginViewModel : XamarinViewModel { Default code of ASPNET Zero . . .

//My Code public ICommand RegisterUserCommand => HttpRequestCommand.Create(Method for Register); public ICommand RegisterGoogleCommand => HttpRequestCommand.Create(Method for Google); public ICommand RegisterMicrosoftCommand => HttpRequestCommand.Create(Method for Microsoft);

Default code of ASPNET Zero . . .

 private readonly IPublicClientApplication PCA;
 private readonly IGoogleClientManager _googleClientManager;
 public string Token { get; set; }

Default code of ASPNET Zero . . .

 public LoginViewModel(
     IAccountAppService accountAppService,
     IApplicationContext applicationContext,
     IAccountService accountService,
     IDataStorageService dataStorageService)
 {
 .
 .
 .

     _googleClientManager = CrossGoogleClient.Current;
     var myUri = new Uri(ApplicationSetting.TenantUrl, UriKind.Absolute);
     PCA = PublicClientApplicationBuilder.Create(ApplicationSetting.ClientID)
             .WithIosKeychainSecurityGroup(ApplicationSetting.ApplicationId)
             .WithAuthority(myUri)
             .WithRedirectUri(ApplicationSetting.RedirectUrl)
             .Build();
 }

Default code of ASPNET Zero . .

 private async Task PageAppearingAsync()
 {
     PopulateLoginInfoFromStorage();
     await Task.CompletedTask;
 }

Default code of ASPNET Zero . . .

 //My Code
 //#1. Microsoft Login
 public async Task MicrosoftRegistrationCallerAsync()
 {
     try
     {
     	try
     	{
         	var authResult = await PCA.AcquireTokenInteractive(ApplicationSetting.Scopes)
                 	        .WithParentActivityOrWindow(App.ParentWindow)
                         	.WithUseEmbeddedWebView(true)
                         	.ExecuteAsync();

         	//#1. External Authentication Model
         	_accountService.CustomExternalAuthenticateModel.ProviderKey = authResult.UniqueId;
         	_accountService.CustomExternalAuthenticateModel.ProviderAccessCode = authResult.AccessToken;
         	_accountService.CustomExternalAuthenticateModel.AuthProvider = "Microsoft";

         	await SetBusyAsync(async () =>
         	{
             		await _accountService.LoginUserExternalAsync();
         	});
     	}
     	catch (Exception ex)
     	{
         	await Application.Current.MainPage.DisplayAlert("Alert", "Invalid Login Credentials, please try again.", "Ok");
         	Console.WriteLine(ex.Message);
     	}
 }

 //#1. Google Login
 private async Task RegisterGoogleAsync()
 {
     _googleClientManager.OnLogin += OnLoginCompleted;
     try
     {
         await _googleClientManager.LoginAsync();
     }
     catch (Exception ex)
     {
         await App.Current.MainPage.DisplayAlert("Error", ex.Message, "OK");
     }
 }

 //#2. Google Login
 private void OnLoginCompleted(object sender, GoogleClientResultEventArgs&lt;GoogleUser&gt; loginEventArgs)
 {
     if (loginEventArgs.Data != null)
     {
         GoogleUser googleUser = loginEventArgs.Data;
         Token = CrossGoogleClient.Current.AccessToken;

         //#1. External Authentication Model
         _accountService.CustomExternalAuthenticateModel.ProviderKey = googleUser.Id.ToString();
         _accountService.CustomExternalAuthenticateModel.ProviderAccessCode = Token;
         _accountService.CustomExternalAuthenticateModel.AuthProvider = "Google";

         SetBusyAsync(async () =>
         {
             await _accountService.LoginUserExternalAsync();
         });
     }
     else
     {
         App.Current.MainPage.DisplayAlert("Error", loginEventArgs.Message, "OK");
     }

     _googleClientManager.OnLogin -= OnLoginCompleted;

 }

 //#3. Google Logout
 public void Logout()
 {
     _googleClientManager.OnLogout += OnLogoutCompleted;
     _googleClientManager.Logout();
 }

 //#4. Google Logout
 private void OnLogoutCompleted(object sender, EventArgs loginEventArgs)
 {
     _googleClientManager.OnLogout -= OnLogoutCompleted;
 }

Thank you in advance !

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