I get the following message when trying to install your package in a portable project targeting .NET 4.5.
AFAIK the fix is to create a new folder in your nuget lib folder named portable-net45+win+wpa81+wp80 and drop the C5.dll in it before publishing it again.
Installing 'C5 2.3.0.1'.
Successfully installed 'C5 2.3.0.1'.
Adding 'C5 2.3.0.1' to Provision.Core.
Uninstalling 'C5 2.3.0.1'.
Successfully uninstalled 'C5 2.3.0.1'.
Install failed. Rolling back...
Could not install package 'C5 2.3.0.1'.
You are trying to install this package into a project that targets 'portable-net45+win+wpa81+wp80',
but the package does not contain any assembly references or content files that are compatible with that framework.
For more information, contact the package author.
I get the following message when trying to install your package in a portable project targeting .NET 4.5.
AFAIK the fix is to create a new folder in your nuget lib folder named
portable-net45+win+wpa81+wp80
and drop theC5.dll
in it before publishing it again.