visual studio 2015 - Dependency from local feed can't be resolved -

i created nuget package , made available locally via local feed. in visual studio 2015 able install package via nuget after added feed package sources. unfortunately, following error in asp.net core project when install package:

code nu1001 dependency [my package] not resolved.

any hints can make work? using vs 2015 update 3 , tooling preview 2. project empty asp.net core web application referencing full .net framework.