NullReferenceException via NuGet.Packaging.PhysicalPackageFile.GetStream

[stevenscreek]

This repos in versions 3.5.0.1520 and 3.5.0.1611.
It does not repo in 3.4.4.1321

• Create a new Windows class library project.
• Use nuget spec on the Project.csproj to create a nuspec file. Provide concrete values for all substitution variables.
• Add a nuget reference to Microsoft.AspNet.WebApi version 5.2.3
• Add a minimal Web.config to the project. Ensure that the item type is <Content>
• Build the project
• Use nuget pack on Project.csproj to create the package.

The result is a null reference exception. I've attached a minimal solution that repos this.

    mscorlib.dll!System.IO.FileStream.Init(string path, System.IO.FileMode mode, System.IO.FileAccess access, int rights, bool useRights, System.IO.FileShare share, int bufferSize, System.IO.FileOptions options, Microsoft.Win32.Win32Native.SECURITY_ATTRIBUTES secAttrs, string msgPath, bool bFromProxy, bool useLongPath, bool checkHost)    Unknown
    mscorlib.dll!System.IO.FileStream.FileStream(string path, System.IO.FileMode mode, System.IO.FileAccess access, System.IO.FileShare share)  Unknown
    mscorlib.dll!System.IO.File.OpenRead(string path)   Unknown
>   nuget.exe!NuGet.Packaging.PhysicalPackageFile.GetStream()   Unknown
    nuget.exe!NuGet.CommandLine.ProjectFactory.ReverseTransformFormFile.GetElement(NuGet.Packaging.IPackageFile file)   Unknown
    nuget.exe!NuGet.CommandLine.ProjectFactory.ReverseTransformFormFile.ReverseTransform(NuGet.Packaging.IPackageFile file, System.Collections.Generic.IEnumerable<NuGet.Packaging.IPackageFile> transforms)    Unknown
    nuget.exe!NuGet.CommandLine.ProjectFactory.ReverseTransformFormFile..ctor.AnonymousMethod__0()  Unknown
    mscorlib.dll!System.Lazy<System.Func<System.IO.Stream>>.CreateValue()   Unknown
    mscorlib.dll!System.Lazy<System.Func<System.IO.Stream>>.LazyInitValue() Unknown
    mscorlib.dll!System.Lazy<System.Func<System.IO.Stream>>.Value.get() Unknown
    nuget.exe!NuGet.CommandLine.ProjectFactory.ReverseTransformFormFile.GetStream() Unknown
    nuget.exe!NuGet.Packaging.PackageBuilder.WriteFiles(System.IO.Compression.ZipArchive package, System.Collections.Generic.HashSet<string> filesWithoutExtensions)    Unknown
    nuget.exe!NuGet.Packaging.PackageBuilder.Save(System.IO.Stream stream)  Unknown
    nuget.exe!NuGet.Commands.PackCommandRunner.BuildPackage(NuGet.Packaging.PackageBuilder builder, string outputPath)  Unknown
    nuget.exe!NuGet.Commands.PackCommandRunner.BuildFromProjectFile(string path)    Unknown
    nuget.exe!NuGet.Commands.PackCommandRunner.BuildPackage(string path)    Unknown
    nuget.exe!NuGet.Commands.PackCommandRunner.BuildPackage()   Unknown
    nuget.exe!NuGet.CommandLine.PackCommand.ExecuteCommand()    Unknown
    nuget.exe!NuGet.CommandLine.Command.ExecuteCommandAsync()   Unknown
    nuget.exe!NuGet.CommandLine.Command.Execute()   Unknown
    nuget.exe!NuGet.CommandLine.Program.MainCore(string workingDirectory, string[] args)    Unknown
    nuget.exe!NuGet.CommandLine.Program.Main(string[] args) Unknown

nuget-pack-exception.zip