升级到 Xamarin Forms 5.0 (Visual Studio 2019 Mac) 后，我的 iOS 应用程序在启动屏幕上冻结

如何解决升级到 Xamarin Forms 5.0 (Visual Studio 2019 Mac) 后，我的 iOS 应用程序在启动屏幕上冻结

我正在尝试解决一个问题，该问题在升级到 Xamarin Forms 5.0 后开始。 我使用的是 Xamarin.Forms.4.8.0.1560。一切正常。 现在，该应用程序冻结在我 iPhone 上的启动屏幕中。 我在控制台上找不到任何提示。

有人遇到同样的问题吗？或者有什么提示吗？

PS：我只将这个项目用于我的 iOS 版本。

谢谢。

这是控制台输出：

    Launched application 'br.com.movisis.demonstracao' on 'iPhone Rafael' with pid 6672
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Mono.Security.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/System.Core.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/System.Numerics.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/System.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/System.Net.Http.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/System.Drawing.Common.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Xamarin.iOS.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/System.Xml.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Xamarin.Forms.Platform.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Xamarin.Forms.Core.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/System.ServiceModel.Internals.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/System.Runtime.Serialization.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Xamarin.Forms.Platform.iOS.dll [External]
Thread started:  #2
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/FFImageLoading.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/WebP.Touch.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/FFImageLoading.Platform.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/FFImageLoading.Forms.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/FFImageLoading.Forms.Platform.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Plugin.InputKit.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Rg.Plugins.Popup.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/SkiaSharp.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/SkiaSharp.Views.iOS.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/SkiaSharp.Views.Forms.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/XFormsTouch.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Ricardo.MWPhotobrowser.iOS.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Lottie.iOS.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Lottie.Forms.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Xamarin.Essentials.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Plugin.Media.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/SignaturePad.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/SignaturePad.Forms.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/HtmlLabel.Forms.Plugin.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Xamarin.Forms.Xaml.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Syncfusion.Licensing.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Syncfusion.Core.XForms.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Syncfusion.Core.XForms.iOS.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Syncfusion.Buttons.XForms.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Syncfusion.Buttons.XForms.iOS.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Microsoft.CSharp.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Syncfusion.DataSource.Portable.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Syncfusion.GridCommon.Portable.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Syncfusion.SfListView.XForms.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Syncfusion.SfListView.XForms.iOS.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Syncfusion.Sfrating.XForms.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Syncfusion.Sfrating.iOS.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Syncfusion.Sfrating.XForms.iOS.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Syncfusion.SfRangeSlider.XForms.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Syncfusion.SfRangeSlider.iOS.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Syncfusion.SfRangeSlider.XForms.iOS.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Plugin.DownloadManager.Abstractions.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Plugin.DownloadManager.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Plugin.ImageEdit.Abstractions.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/FFImageLoading.Transformations.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/System.Transactions.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/System.Data.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/System.Xml.Linq.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Newtonsoft.Json.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/ICSharpCode.SharpZipLib.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Mono.Data.sqlite.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Syncfusion.Data.Portable.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Syncfusion.SfComboBox.XForms.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Syncfusion.SfNumericTextBox.XForms.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Syncfusion.SfDataGrid.XForms.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Syncfusion.SfCalendar.XForms.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/Plugin.ImageEdit.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/MoviAuto.iOS.exe
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/netstandard.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/System.Runtime.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/System.ObjectModel.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/System.Resources.ResourceManager.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/System.Reflection.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/System.Threading.Tasks.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/System.Collections.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/System.IO.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/System.Threading.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/OpenTK-1.0.dll [External]
Thread started: <Thread Pool> #3
Thread started: <Thread Pool> #4
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Thread started: <Thread Pool> #7
Resolved pending breakpoint at 'Aplicacao.cs:1510,1' to bool Componentes.Aplicacao.OperacaoPecaServico (string operacao,string tipo,int empresa,int revenda,long contato,int nroSolicitacao,int nroLancamento,int codigo,double valorUnitario,double quantidade,string tipoServico,string desSolicitacao,double pctDesconto,double valDesconto,bool desconto,double valDescontoPecas,double valDescontoServicos,double pctDescontoPecas,double pctDescontoServicos) [0x0012d].
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/System.Text.RegularExpressions.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/System.Linq.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/System.Runtime.Extensions.dll [External]
Thread started:  #8
Thread started:  #9
Thread started:  #10
Thread started:  #11
Thread started:  #12
Thread started:  #13
Thread finished:  #12
Thread started: <Thread Pool> #14
Thread started: <Thread Pool> #15
Thread started: <Thread Pool> #16
Thread finished:  #10
Resolved pending breakpoint at 'Utils.cs:179,1' to long Componentes.MyExtensions.AsLong (System.Data.DaTarow row,string ColumnName) [0x00019].
Thread finished:  #9
Loaded assembly: /private/var/containers/Bundle/Application/E43E5CEA-823B-43E7-A875-F5AF636D434E/MoviAuto.iOS.app/System.Text.Encoding.dll [External]
Thread started: <Thread Pool> #17
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Thread finished: <Thread Pool> #15