unresolved external symbol using curl NuGet

Question

environment:

microsoft visual studio 2017
NuGet package manager
C++ project

workflow:

1. I added curl using NuGet
2. I attempted to compile my project
3. it throws 8 linker errors "unresolved external symbol"

project structure:

 root  
   -> packages  

   ----> curl.7.30.0.2  
   -------->  build     
   -------->  tools  

   ----> curl.redist.7.30.0.2  
   -------->  build

   ----> libssh2.1.4.3.1  

(this is not the entire directory structure, the point is there seems to be a lot of choice with regards to which curl dll I could add to the environment.)

Any ideas on how to get this working?