How to install the MS C# 6.0 compiler?

Question

I am trying to compile a C# project that someone has created while using C# 6.0 features.

In previous .NET releases, the current C# compiler was automatically instal

Answer 1

From the Roslyn project on GitHub:

To install the latest release without Visual Studio, run one of the following nuget command lines:

nuget install Microsoft.Net.Compilers   # Install C# and VB compilers
nuget install Microsoft.CodeAnalysis    # Install Language APIs and Services

To get the latest "preview" drop, published about once per month, add the -pre switch to the nuget commands.