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ionic-app-base@ ionic:serve /ionic/ionic-master/www/helloWorld
ionic-app-scripts serve “–v2” “–address” “” “–port” “8100” “–livereload-port” “35729”

sh: 1: ionic-app-scripts: not found

npm ERR! Linux 4.10.0-999-lowlatency
npm ERR! argv “/usr/bin/nodejs” “/usr/local/bin/npm” “run” “ionic:serve” “–” “–v2” “–address” “” “–port” “8100” “–livereload-port” "35729"
npm ERR! node v4.2.6
npm ERR! npm v3.10.10
npm ERR! file sh
npm ERR! errno ENOENT
npm ERR! syscall spawn
npm ERR! ionic-app-base@ ionic:serve: ionic-app-scripts serve "--v2" "--address" "" "--port" "8100" "--livereload-port" "35729"
npm ERR! spawn ENOENT
npm ERR!
npm ERR! Failed at the ionic-app-base@ ionic:serve script ‘ionic-app-scripts serve “–v2” “–address” “” “–port” “8100” “–livereload-port” “35729”’.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the ionic-app-base package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR! ionic-app-scripts serve “–v2” “–address” “” “–port” “8100” “–livereload-port” "35729"
npm ERR! You can get information on how to open an issue for this project with:
npm ERR! npm bugs ionic-app-base
npm ERR! Or if that isn’t available, you can get their info via:
npm ERR! npm owner ls ionic-app-base
npm ERR! There is likely additional logging output above.
npm WARN Local package.json exists, but node_modules missing, did you mean to install?

npm ERR! Please include the following file with any support request:
npm ERR! /ionic/ionic-master/www/helloWorld/npm-debug.log
There was an error serving your Ionic application: There was an error with the spawned command: serve