VS 谬误：
The “Microsoft.Build.Tasks.Xaml.PartialClassGenerationTask” task could
not be loaded from the assembly C:\Program Files (x86)\Microsoft
Visual
Studio\2019\Enterprise\MSBuild\Current\Bin\amd64\XamlBuildTask.dll.
Could not load file or assembly ‘file:///C:\Program Files
(x86)\Microsoft Visual
Studio\2019\Enterprise\MSBuild\Current\Bin\amd64\XamlBuildTask.dll’ or
one of its dependencies. The system cannot find the file specified.
Confirm that the <UsingTask> declaration is correct, that the assembly
and all its dependencies are available, and that the task contains a
public class that implements Microsoft.Build.Framework.ITask.
解决方案，请批改 Visual Studio 装置（应用 Visual Studio 安装程序），在“单个组件”选项卡中查找“Windows Workflow Foundation”并抉择它。