Cannot update Ionic-CLI
<p>I'm having an issue updating to the latest version of Ionic. I became aware of the issue when I tried to run the command <code>ionic g provider Tabs</code> and got <code>g is not a valid task</code> in response.</p>

<p>I have three versions of NodeJS installed, that I switch between with NVM. I tried removing Ionic and Cordova from all three, updating NPM, and re-installing in just the latest version of Node. Still no luck. </p>

<p>My system info is as follows below:</p>

<p>`
Cordova CLI: You have been opted out of telemetry. To change this, run: cordova telemetry on.
6.3.1</p>

<p>Gulp version:  Requiring external module babel-register
Gulp local:   CLI version 1.2.1
Ionic CLI Version: 1.7.7
Ionic App Lib Version: 0.6.3
ios-deploy version: Not installed
ios-sim version: 5.0.3 
OS: Mac OS X El Capitan
Node Version: v6.7.0
Xcode version: Xcode 8.0 Build version 8A218a 
`</p>

<p>I've been bashing my head against a wall all day, so any help would be much appreciated!</p>