CSS Missing from build 404

[xr0master]

It is Ionic CLI
you need update ionic-angular package. However Ionic Team have been changed some things, so it’s not easy )

Ionic 2 Projects: updating to beta.6

Hello Ionites! Migration guide extraordinaire @iignatov has created another excellent resource which he asked me to share with you, since there were some changes to imports in the starters as of beta.6.   1. Update the Ionic CLI to the latest version: npm install -g ionic@beta   2. If you’re upgrading a project using Ionic 2.0.0-beta.3 or older check out the following guide first.   3. Remove the line import 'es6-shim' from app.ts/app.js. If you’re using webpack, remove ‘es6-shim’ from the e…