Visual Studio Code: fixing error “Cannot find module ‘eslint-plugin-react'”

For some reason, installing plugins in Visual Studio Code doesn’t always pull stuff from NPM correctly.

If you get this error:

Cannot find module 'eslint-plugin-react'

This means you need to install this plugin into the global NPM registry:

npm install eslint-plugin-react -g
eslint-plugin-react@4.3.0 C:\Users\gary\AppData\Roaming\npm\node_modules\eslint-plugin-react