In
https://github.com/fsprojects/Paket/tree/targets we created .targets files for the NuGet packages.
In order to reproduce you can
0) Clone or download the targets branch from the link above
1) Run build.cmd to restore all files
2) Open VS and build in VS (works)
3) Activate nCrunch - build doesn't work since nCrunch can't understand the targets files
the _ncrunchereferences folder seems to be OK and "Copy Referenced Assemblies To Workspace" doesn't help.
Cheers,
Steffen