$(MSBuildProjectDirectory)\..\Tools\ $(MSBuildProjectDirectory)\..\..\..\NuGetStaging\ $(MSBuildProjectDirectory)\..\..\Source\Bin\ $(BuildToolsDir)NuGet.exe 4.0.0.0 Prism.Core Prism.Core lib\NET40 Prism.Core lib\SL4 Prism.MEFExtensions Prism.MEFExtensions lib\NET40 Prism.MEFExtensions lib\SL4 Prism.UnityExtensions Prism.UnityExtensions lib\NET40 Prism.UnityExtensions lib\SL4