问在Visual中的xsd.exe社区任务BeforeBuild步骤期间，无法在路径中找到BeforeBuild

EN

 <ItemGroup>   
    <!-- Configure XSD files by using the XsdClasses custom item type.  All files of this type are converted by the GenerateXsdClasses target. --> 
    <XsdClasses Include="Data\XsdFile1.xsd">
      <SubType>Designer</SubType>
    </XsdClasses>
     <XsdClasses Include="Data\XsdFile2.xsd">
      <SubType>Designer</SubType>
    </XsdClasses>
  </ItemGroup>


  <!-- In-line task to add a folder to the current path if not already in it. -->
  <UsingTask TaskName="AddToPath" TaskFactory="CodeTaskFactory" AssemblyFile="$(MSBuildToolsPath)\Microsoft.Build.Tasks.v4.0.dll">
    <ParameterGroup>
      <FolderPath ParameterType="System.String" Required="true" />
    </ParameterGroup>

    <Task>
      <Code Type="Fragment" Language="c#"><![CDATA[
            const string PathEnvironmentVariableName = "PATH";
            string currentPath = Environment.GetEnvironmentVariable(PathEnvironmentVariableName);
            if(!currentPath.ToLower().Contains(FolderPath.ToLower()))
            {
                currentPath = currentPath.TrimEnd(';');
                string newPath = string.Format("{0};{1}", currentPath, FolderPath);
                Environment.SetEnvironmentVariable(PathEnvironmentVariableName, newPath);
            }
]]></Code>
    </Task>   
  </UsingTask>

  <!-- Reference the Xsd task. -->
  <UsingTask TaskName="XSD" AssemblyFile="$(VCTargetsPath)Microsoft.Build.CppTasks.Common.dll" />

  <!-- Set the default path to Xsd.exe - this will be added to the current path using the above inline task.  Can be overridden per client by setting a user or machine environment variable with the same name. -->
  <PropertyGroup>
    <NetFxToolsPath Condition="'$(NetFxToolsPath)' == ''">C:\Program Files (x86)\Microsoft SDKs\Windows\v10.0A\bin\NETFX 4.7 Tools\</NetFxToolsPath>
  </PropertyGroup>


  <!-- Generate classes from xsd files configured with 'XsdClasses' item type. -->
  <Target Name="GenerateXsdClasses" Inputs="@(XsdClasses)" Outputs="@(XsdClasses->'%(RelativeDir)%(Filename).cs')">
    <Message Importance="high" Text="Building %(XsdClasses.Filename)" />
    <AddToPath FolderPath="$(NetFxToolsPath)" />
    <!-- Note the trailing . in the outputdir because the folder ends with a / -->
    <XSD MinimalRebuildFromTracking="true" Sources="%(XsdClasses.Identity)" GenerateFromSchema="classes" Namespace="XsdClassesNamespace" SuppressStartupBanner="true" AdditionalOptions="/outputdir:&quot;%(XsdClasses.RelativeDir).&quot;" />
  </Target>

  <!-- Configure class generation from xsd to occur before build. -->
  <Target Name="BeforeBuild" DependsOnTargets="GenerateXsdClasses"/>

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <TargetFramework>netstandard2.0</TargetFramework>
  </PropertyGroup>

  <UsingTask TaskName="ToolLocationHelper" AssemblyName="Microsoft.Build.Utilities.Core" />

  <Target Name="PostBuild" AfterTargets="PostBuildEvent">
    <Exec Command="&quot;$([Microsoft.Build.Utilities.ToolLocationHelper]::GetPathToDotNetFrameworkSdkFile(`xsd.exe`))&quot;  $(TargetPath) -outputdir:$(ProjectDir)" />
  </Target>
</Project>