我能够正常使用 nanoframework，但不知何故现在 DeviceExplorer 不再打开。
我检查了 ActivityLog.xml，它显示以下错误：
819 ERROR SetSite failed for package [Visual Studio 2019 extension for nanoFramework. Enables creating C# Solutions to be deployed to a target board and provides debugging tools.]Source: 'nanoFramework.Tools.VS2019.Extension' Description: Could not load file or assembly 'Microsoft.VisualStudio.Threading, Version=16.9.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified. System.IO.FileNotFoundException: Could not load file or assembly 'Microsoft.VisualStudio.Threading, Version=16.9.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified. File name: 'Microsoft.VisualStudio.Threading, Version=16.9.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'at nanoFramework.Tools.VisualStudio.Extension.NanoFrameworkPackage.<InitializeAsync>d__65.MoveNext()at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[TStateMachine](TStateMachine& stateMachine)at nanoFramework.Tools.VisualStudio.Extension.NanoFrameworkPackage.InitializeAsync(CancellationToken cancellationToken, IProgress`1 progress)at Microsoft.VisualStudio.Shell.AsyncPackage.<>c__DisplayClass20_0.<<Microsoft-VisualStudio-Shell-Interop-IAsyncLoadablePackageInitialize-Initialize>b__1>d.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()at Microsoft.VisualStudio.Services.VsTask.RethrowException(AggregateException e)at Microsoft.VisualStudio.Services.VsTask.InternalGetResult(Boolean ignoreUIThreadCheck)at Microsoft.VisualStudio.Services.VsTask.GetResult() WRN: Assembly binding logging is turned OFF. To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1. Note: There is some performance penalty associated with assembly bind failure logging. To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog]. {046B40EB-1DE1-4D08-AF61-FDB7592B9BBD} 80070002 VisualStudio 2021/03/21 07:18:45.265
820 ERROR End package load [Visual Studio 2019 extension for nanoFramework. Enables creating C# Solutions to be deployed to a target board and provides debugging tools.] {046B40EB-1DE1-4D08-AF61-FDB7592B9BBD} 80070002 VisualStudio 2021/03/21 07:18:45.270
我想强调一下，我的 Visual Studio nanoframework 扩展设置为自动更新，听起来它最近更新到 2019.5.0.34
我使用的是 Visual Studio Professional 2019 16.8.3
禁用/启用扩展，重新启动 Visual Studio 没有帮助。
是否有任何线索可能导致此问题？
答案 0 :(得分：3)
您应该将 Visual Studio 更新到 16.9 或更高版本。