WebpackJson is not Defined

WebpackJson not defined

In my project i checked all the path on index page is written.
All the files is presnet in www/build folder.

But still the vendor file is not loading,
I check in inspect : sourece tab => pages => build
There is only two or three filed found,
Which is except vendor.js file.

This is my system confuguraion.
Cordova CLI: 7.1.0
Gulp version: CLI version 3.9.1
Gulp local:
Ionic CLI Version: 1.7.16
Ionic App Lib Version: 0.7.3
OS: Distributor ID: Ubuntu Description: Ubuntu 16.04.5 LTS
Node Version: v7.4.0

even i update to this

ionic (Ionic CLI) : 4.1.2 (/home/radheshyam/.nvm/versions/node/v7.4.0/lib/node_modules/ionic)
Ionic Framework : ionic-angular 3.9.2
@ionic/app-scripts : 3.2.0


cordova (Cordova CLI) : 7.1.0
Cordova Platforms : none
Cordova Plugins : no whitelisted plugins (0 plugins total)


Android SDK Tools : 25.2.5 (/home/radheshyam/android-sdk-linux/)
NodeJS : v7.4.0 (/home/radheshyam/.nvm/versions/node/v7.4.0/bin/node)
npm : 5.4.2
OS : Linux 4.4

not worked

Please hep.

Fixed this issue,
It was folder permissions issue.