Total noob here, please be gentle.
I'm running Windows 10:
...but 'ionic info' is indicating 8.1:
ionic info
Cordova CLI: 5.3.3
Gulp version: CLI version 3.9.0
Gulp local:
Ionic CLI Version: 1.7.0
Ionic App Lib Version: 0.5.1-beta.0
OS: Windows 8.1
Node Version: v0.12.7
Is this a problem?