从URL MSBUILD xml恢复Nuget包

Question

我正在使用MSBuild.exe构建安装脚本。我有3个Nuget软件包，脚本应该将其还原，但是它忽略了它们，我不知道为什么。

这是我用于MSBuild的XML代码

<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Start"
     xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<PropertyGroup>
    <SourceFolder>..\myfolder</SourceFolder>
</PropertyGroup>

<Target Name="Start">
    <CallTarget Targets="Build"/>
</Target>

<ItemGroup>
    <PackageReference Include="Autofac" Version="4.8.1" />
    <PackageReference Include="MSTest.TestAdapter" Version="1.4.0" />        
    <PackageReference Include="MSTest.TestFramework" Version="1.4.0" />                
</ItemGroup>

<Target Name="Build">
    <MSBuild 
            Projects="$(SourceFolder)\mysolution.sln"
            Properties="Configuration=Release"
            Targets="Restore;Clean;Build"
            ContinueOnError="false"
            StopOnFirstFailure="true"
    >

    </MSBuild>
</Target>
</Project>

谢谢。