.NET 4.8下dotnet test无法找到XPlat Code Coverage的问题咨询

疑问1：Coverlet对SDK风格项目的要求范围 #

测试项目为SDK风格且已安装coverlet.collector，但部分被引用项目非SDK风格，项目基于.NET 4.8。想明确：Coverlet仅支持SDK风格项目的要求，是仅针对测试项目，还是包含所有被引用的项目？

问题2：针对DLL执行dotnet test时无法找到XPlat Code Coverage收集器 #

构建项目后，执行以下dotnet test命令直接针对测试DLL文件：

dotnet test C:\git\Repositories\xxxx\bin\AnyCPU\Release\Test\aaaaaaaa.dll   --collect:"XPlat Code Coverage" --settings:CodeCoverage.runsettings --results-directory C:\git\Repositories\xxxx\TestResults --logger  'trx;LogFilePrefix=aaaaaaaaa.dll' -- RunConfiguration.TargetPlatform=x64 MSTest.DeploymentEnabled=false

运行时出现错误：

VERBOSE: Data collection : Unable to find a datacollector with friendly name 'XPlat Code Coverage'.
VERBOSE: Data collection : Could not find data collector 'XPlat Code Coverage'

已确认测试项目已引用coverlet.collector，但仍报错。此前在.NET 5+环境下针对csproj使用Coverlet无问题，但当前必须针对DLL执行测试且无法升级.NET版本，请问Coverlet在此场景下是否存在限制？

测试项目csproj配置 #

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

    <PropertyGroup>
        <TargetFramework>net48</TargetFramework>
        <IsPackable>false</IsPackable>
        <RootNamespace>xxxxxxx</RootNamespace>
        <OutputPath>..\..\bin\$(Platform)\$(Configuration)\Test\Shared</OutputPath>
        <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
        <AppendTargetFrameworkToOutputPath>false</AppendTargetFrameworkToOutputPath>
    </PropertyGroup>

    <ItemGroup>
        <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.5.0" />
        <PackageReference Include="MSTest.TestAdapter" Version="3.0.4" />
        <PackageReference Include="MSTest.TestFramework" Version="3.0.4" />
        <PackageReference Include="ApprovalTests" Version="5.7.3" />
        <PackageReference Include="ApprovalUtilities" Version="5.7.3" />
        <PackageReference Include="System.Data.SqlClient" Version="4.8.5" />
        <PackageReference Include="coverlet.collector" Version="6.0.0">
            <PrivateAssets>all</PrivateAssets>
            <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
        </PackageReference>
    </ItemGroup>
    
    <ItemGroup>
        <ProjectReference Include="xxxxxx.csproj" />
        <ProjectReference Include="yyyyyy.csproj" />
    </ItemGroup>

    <ItemGroup>
        <Compile Include="..\..\Properties\SharedAssemblyInfo.cs">
            <Link>Properties\SharedAssemblyInfo.cs</Link>
        </Compile>
    </ItemGroup>
        
    <ItemGroup>
        <None Include="app.config" />
    </ItemGroup>
        
    <Target Name="CopyApprovalFiles" AfterTargets="PostBuildEvent">    
        <ItemGroup>
            <ApprovedFiles Include="**\*.approved.txt" />
        </ItemGroup>
        <Copy SourceFiles="@(ApprovedFiles)" DestinationFolder="$(OutputPath)\ApprovedFiles" />
    </Target>
</Project>

CodeCoverage.runsettings配置 #

<?xml version="1.0" encoding="utf-8" ?>
<RunSettings>
    <DataCollectionRunSettings>
        <DataCollectors>
            <DataCollector friendlyName="XPlat Code Coverage">
                <Configuration>
                    <ExcludeByFile>**/*Test*/**/*.*</ExcludeByFile>
                </Configuration>
            </DataCollector>
        </DataCollectors>
    </DataCollectionRunSettings>
</RunSettings>

内容的提问来源于stack exchange，提问作者rbasniak