So I'm getting the error:
Missing compiler required member Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create
Here's the thing. I have VS 2015 Community. I did NOT have the Unity plugin for VS and so I was able to add the Microsoft.CSharp.dll reference and the game would run. However, I wasn't able to debug it because I didn't have the Unity plugin for VS. So I went and installed that, but now I get this error. And now when I right click references in my project explorer I have NO option to add references like I could before so I can't add that reference now.
I've looked at this and this is how I got it working when I didn't have the Unity plugin for VS. This doesn't address my issue. How can I add this Microsoft.CSharp.dll reference in my project now that this Unity plugin won't let me?