File not found

# Bug Report

## Problem
Js files not found in electron build

### What is expected to happen?
Successfully load js on Linux deb package

### What does actually happen?
Fail to load build js files

## Information

runtime-es2015.js:1 Failed to load resource: net::ERR_FILE_NOT_FOUND
polyfills-es2015.js:1 Failed to load resource: net::ERR_FILE_NOT_FOUND
styles-es2015.js:1 Failed to load resource: net::ERR_FILE_NOT_FOUND
cordova.js:1 Failed to load resource: net::ERR_FILE_NOT_FOUND
vendor-es2015.js:1 Failed to load resource: net::ERR_FILE_NOT_FOUND
main-es2015.js:1 Failed to load resource: net::ERR_FILE_NOT_FOUND

### Command or Code

### Environment, Platform, Device

Ionic cordova Electron
Ubuntu 16

### Version information

## Checklist

- [ ] I searched for existing GitHub issues
- [ ] I updated all Cordova tooling to most recent version
- [ ] I included all the necessary information above

Reproduce the Electron deb package on Ubuntu 16 and inspect why runtime-es2015.js, polyfills-es2015.js, styles-es2015.js, cordova.js, vendor-es2015.js, and main-es2015.js cannot be found. Compare the packaged paths with the paths used at runtime; done means the listed JavaScript files load successfully in the Linux package.

Written by the indexing model from the issue text.