Include pdb files into my nuget (nupkg) files

Question

If you are using VS2017 15.4 or later, you can define a MSBuild property in your project file

<AllowedOutputExtensionsInPackageBuildOutputFolder>$(AllowedOutputExtensionsInPackageBuildOutputFolder);.pdb</AllowedOutputExtensionsInPackageBuildOutputFolder>

This is discussed in NuGet #4142

However, there is still an issue as the new project system does not copy the pdbs from packages to the bin/publish folder for .NET Core 3.0+, a good summary is also at sourcelink/#628

Currently this is not planned to be fixed until .NET 7 🙁

In the meantime a work-around is to include the following fragment into API and test projects to ensure you have the appropriate pdbs to allow you to step into the remote source code.

<!-- https://github.com/dotnet/sdk/issues/1458#issuecomment-1063915490 -->
<Target Name="IncludeSymbolFiles" AfterTargets="ResolveAssemblyReferences" Condition="@(ReferenceCopyLocalPaths) != ''">
  <ItemGroup>
    <ReferenceCopyLocalPaths Include="%(ReferenceCopyLocalPaths.RelativeDir)%(ReferenceCopyLocalPaths.Filename).pdb;                                %(ReferenceCopyLocalPaths.RelativeDir)%(ReferenceCopyLocalPaths.Filename).xml" />
    <ReferenceCopyLocalPaths Remove="@(ReferenceCopyLocalPaths)" Condition="!Exists('%(FullPath)')" />
  </ItemGroup>
</Target>

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