我刚刚工作并尝试向我的项目添加资源。加载后出现以下错误。我今天早些时候对我的视觉工作室 VS Pro 2022 64x (17.3.5) 进行了更新，所以我不知道这是否是导致此问题的原因？我查看备份一个多月了，但我什至从未见过这个文件曾经存在过？我有点困惑有人遇到过这个问题或者知道如何解决吗？我确实运行了清理并重建，但没有帮助。谢谢！
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10/5/2022 11:42:01 AM
Recoverable
Microsoft.VisualStudio.ProjectSystem.Query.QueryExecutionException: The file P:\Projects\MyPortal\MyPortal\Application.xaml is not part of any project in the solution so it cannot be opened. Add the file to a project and try again. ---> System.ArgumentException: The file P:\Projects\MyPortal\MyPortal\Application.xaml is not part of any project in the solution so it cannot be opened. Add the file to a project and try again.
at Microsoft.VisualStudio.Shell.Design.Serialization.DocData..ctor(IServiceProvider provider, String fileName)
at Microsoft.VisualStudio.ProjectSystem.VS.WPF.ApplicationXamlFileAccessor.<<TryGetApplicationXamlFileAsync>g__GetDocDataAsync|11_0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.VisualStudio.ProjectSystem.VS.WPF.ApplicationXamlFileAccessor.<TryGetApplicationXamlFileAsync>d__11.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.VisualStudio.ProjectSystem.VS.WPF.ApplicationXamlFileAccessor.<GetStartupUriAsync>d__7.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.VisualStudio.ProjectSystem.Properties.WPFValueProvider.<GetPropertyValueAsync>d__10.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.VisualStudio.ProjectSystem.Properties.InterceptedProjectProperties.<GetUnevaluatedPropertyValueAsync>d__3.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.VisualStudio.ProjectSystem.PropertyPages.PageProperty.<GetUnevaluatedValueFromDataSourceAsync>d__41.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.VisualStudio.ProjectSystem.VS.Query.UIPropertyValueDataProducer.<CreateUIPropertyValueValueAsync>d__1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.VisualStudio.ProjectSystem.VS.Query.UIPropertyValueDataProducer.<CreateUIPropertyValueValueAsync>d__0.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at Microsoft.VisualStudio.ProjectSystem.VS.Query.UIPropertyValueDataProducer.<CreateUIPropertyValueValuesAsync>d__2.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.VisualStudio.ProjectSystem.VS.Query.QueryDataFromProviderStateProducerBase`1.<SendRequestAsync>d__0.MoveNext()
--- End of inner exception stack trace ---
at Microsoft.VisualStudio.ProjectSystem.Query.QueryExecution.QuerySubscription`1.<RunQueryOnceAsync>d__9.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.VisualStudio.ProjectSystem.Query.QueryExecution.QuerySubscription`1.<>c__DisplayClass8_0.<<Start>b__0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.VisualStudio.ProjectSystem.VS.Implementation.PropertyPages.Designer.ProjectPropertyDataAccess.Observer.<InitializeAsync>d__10.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
at Microsoft.VisualStudio.ProjectSystem.VS.Implementation.PropertyPages.Designer.ProjectPropertyDataAccess.Observer.<CreateAsync>d__9.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.VisualStudio.ProjectSystem.VS.Implementation.PropertyPages.Designer.ProjectPropertiesEditor.<>c__DisplayClass0_0.<<-ctor>b__0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.VisualStudio.ProjectSystem.VS.Implementation.PropertyPages.Designer.AsyncLoadContent.<>c__DisplayClass0_0.<<Initialize>b__0>d.MoveNext()
===================
显然，在较新版本的 Visual Studio 2022 中，有一个标记设置为使用 WPF，这会导致在 WinForms 项目中找不到 Application.xaml。
为了解决这个问题，我打开了 .vbproj 文件并将 UseWPF 从 true 更改为 false，然后我能够再次打开我的项目属性。
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