Install

-[.NET 4.5.1](http://www.microsoft.com/en-us/download/details.aspx?id=40779)

-[MSBuild 12.0](http://www.microsoft.com/en-us/download/details.aspx?id=40760) or Visual Studio 2013 (or later)

-[.NET 4.6](https://www.microsoft.com/en-gb/download/details.aspx?id=48130)

**NOTE on Windows:**

1. It is recommended to run the build.cmd and the qualifiers below on a command prompt with path set to have the location of MSBuild. Ifwe have Visual Studio, we can also run using`Developer Command Prompt for Visual Studio 20xx` (depends on Visual Studio version). This developer command prompt is easier to use than normal command prompt, because it already has the correct path of Visual Studio and .NET's tooling set for us to use (including MSBuild).

1. It is recommended to run the build.cmd and the qualifiers below on a command prompt with path set to have the location of MSBuild. Ifyou have Visual Studio, we can also run using`Developer Command Prompt for Visual Studio 20xx` (depends on Visual Studio version). This developer command prompt is easier to use than normal command prompt, because it already has the correct path of Visual Studio and .NET's tooling set for us to use (including MSBuild).

2. The running command prompt must be run under Administrator right (`Run as Administrator`).

Before running the build scripts, ensure that you have cleaned up the visualfsharp repo by running this git command:

Building``FSharp.sln`` builds nearly everything. However building portable profiles of

FSharp.Core.dll is not included. If you are just developing the core compiler and library

then building the solution will be enough.

If you are just developing the core compiler and library then building``FSharp.sln`` will be enough.

Full testing is not yet enabled on Linux, nor is a .NET Core build of the compiler.

Full testing is not yet enabled on Linux.

Full testing is not yet enabled on macOS.

Install[the latest .NET SDK](https://www.microsoft.com/net/download/). Then use

-[Git for windows](http://msysgit.github.io/)

-[.NET 3.5](http://www.microsoft.com/en-us/download/details.aspx?id=21)

-[.NET 4.5](http://www.microsoft.com/en-us/download/details.aspx?id=30653)

-[.NET 4.5.1](http://www.microsoft.com/en-us/download/details.aspx?id=40779)

-[.NET 4.6](http://www.microsoft.com/en-us/download/details.aspx?id=48137)

-[MSBuild 12.0](http://www.microsoft.com/en-us/download/details.aspx?id=40760)

-[Windows 7 SDK](http://www.microsoft.com/en-us/download/details.aspx?id=8279)

-[Windows 8 SDK](http://msdn.microsoft.com/en-us/windows/desktop/hh852363.aspx)

-[Windows 8.1 SDK](http://msdn.microsoft.com/en-us/library/windows/desktop/bg162891.aspx)

-[Windows 10 SDK](https://developer.microsoft.com/en-US/windows/downloads/windows-10-sdk)