You are on a really, really old and broken alpha version of the CLI v3. You shoud uninstall and reinstall this.
npm uninstall -g ionic
npm install -g ionic
Then you will get a current and actually working version of Ionic.
You are on a really, really old and broken alpha version of the CLI v3. You shoud uninstall and reinstall this.
npm uninstall -g ionic
npm install -g ionic
Then you will get a current and actually working version of Ionic.