Generators are only available for Ionic 2 projects (CLI v2.2.3)

D:\app>ionic g page myPage



Your system information:

 ordova CLI: 7.0.1
Ionic Framework Version: 2.0.1
Ionic CLI Version: 2.2.3
Ionic App Lib Version: 2.2.1
Ionic App Scripts Version: 1.3.7
ios-deploy version: Not installed
ios-sim version: Not installed
OS: Windows 7
Node Version: v7.0.0
Xcode version: Not installed




D:\app>


Correção:
npm uninstall -g ionic npm install -g ionic@latest

Categories: Ionic2