Node Sass No Binding for Your current environment

I've seen quite a few of these questions on SO, but none seem to solve or match the problem.
Node Sass could not find a binding for your current environment: Windows 64-bit with Node.js 6.x. The odd thing is, I don't have Node.js 6.x installed. From the command line, node -v gives me v5.10.1.

I'm the Angular4 Universal Asp.net core visual studio 2017 template straight out of the box.

I've tried

• npm rebuild node-sass --force

• Reordering node in Web External toolsin Visual Studio

  fail: Microsoft.AspNetCore.Server.Kestrel[13] Connection id "0HL4JSD9SSV8E": An unhandled exception was thrown by the application. System.Exception: Call to Node module failed with error: Prerendering failed because of error: Error: Module build failed: Error: Missing binding D:\Projects\angular2\node_modules\node-sass\vendor\win32-x64-48\binding.node Node Sass could not find a binding for your current environment: Windows 64-bit with Node.js 6.x

  Found bindings for the following environments:

  • Windows 64-bit with Node.js 5.x

  This usually happens because your environment has changed since running npm install. Run npm rebuild node-sass --force to build the binding for your current environment. at module.exports (D:\Projects\angular2\node_modules\node-sass\lib\binding.js:15:13) at Object. (D:\Projects\angular2\node_modules\node-sass\lib\index.js:14:35)

Where have I gone wrong?

via Darthg8r