[Node.JS @ Windows] The command "nvs add node" failed

While trying to add Windows build support for my Node.JS test builds, the builds are failing with the above error.

.travis.yml file used:

language: node_js
  - linux
  - osx
  - windows
- node
- 'lts/*'
after_success: npm run coverage

Any hints on this?
Thanks in advance!

I think node is not a valid name on Windows (which uses a different Node.js version manager).

This should be noted in the docs, or ask nvs to add support for this name.