title: Manually adding a reference to Entity Framework
body: <p>I am working on a project that revolves around EF. 
  I have the core layers of my project separated into different projects. </p>
  
  <p>Unfortunately I constantly get errors that are happening because I am missing a reference to EntityFramework.SqlServer.dll in my project.</p>
  
  <p>Adding the .dll file to my build folder fixes this issue, but I want to solve it by a "using" statement in my code, however I cannot do that as I am missing a reference to Entity Framework in my project.</p>
  
  <p>I was wondering how do I add one?</p>
  
  <p>*PS If I serach for EntityFramework in the "Add reference" panel, I don't get EF as an option.</p>
  
  <p>**I could always install it with NuGet, but wouldn't that be redundant, since I already have it installed? </p>