Ionic serve stops after "build dev started"

Ionic Framework ionic-v3
1

21

Any ideas
“@ionic/app-scripts”: “1.1.4”,

Ionic info:

@ionic/cli-plugin-ionic-angular : 1.4.1
@ionic/cli-utils                : 1.7.0
ionic (Ionic CLI)               : 3.7.0

local packages:

@ionic/app-scripts : 1.1.4
Ionic Framework    : ionic-angular 2.2.0

System:

Node  : v6.11.2
OS    : macOS Sierra
Xcode : Xcode 8.3.3 Build version 8E3004b
npm   : 5.3.0
2

Upgrade that to a current version. (Read the changelog for the 2.x change)

Also run the same command with --verbose for possibly more output.