Reference error: WebpackJsonp not defined - angularjs

Question

Converted my existing Angular 2 project into electron base cross platform than I installed electron-forge start development tools for development to simple easy way to package.
A command to launch app : electron-forge start
Unlikely returned an reference error "WebpackJsonp not defined" in error popup.
I found one of Stackoverflow answered to put your vendor.js before main.js but unfortunately it's not work in my case.
Package.json
{
"name": "myApp",
"version": "0.0.0",
"license": "MIT",
"main": "dist/main.bundle.js",
"scripts": {
"ng": "ng",
"start": "electron-forge start",
"build": "ng build --base-href $npm_package_config_baseurl",
"test": "ng test",
"lint": "ng lint",
"e2e": "ng e2e",
"electron": "electron .",
"package": "electron-forge package",
"make": "electron-forge make"
},
"private": true,
"dependencies": {
"#angular/common": "^4.0.0",
"#angular/compiler": "^4.0.0",
"#angular/core": "^4.0.0",
"#angular/forms": "^4.0.0",
"#angular/http": "^4.0.0",
"#angular/platform-browser": "^4.0.0",
"#angular/platform-browser-dynamic": "^4.0.0",
"#angular/router": "^4.0.0",
"#types/lodash": "^4.14.62",
"angular2-uuid": "^1.1.1",
"bootstrap": "^3.3.7",
"core-js": "^2.4.1",
"dotenv": "^4.0.0",
"electron-compile": "^6.4.0",
"lodash": "^4.17.4",
"rxjs": "^5.1.0",
"socket.io": "^1.7.3",
"socket.io-client": "^1.7.3",
"zone.js": "^0.8.4"
},
"devDependencies": {
"#angular/cli": "1.0.0",
"#angular/compiler-cli": "^4.0.0",
"#types/jasmine": "2.5.38",
"#types/node": "~6.0.60",
"babel-plugin-transform-async-to-generator": "^6.24.1",
"babel-preset-env": "^1.4.0",
"babel-preset-react": "^6.24.1",
"codelyzer": "~2.0.0",
"electron-prebuilt-compile": "1.6.5",
"jasmine-core": "~2.5.2",
"jasmine-spec-reporter": "~3.2.0",
"karma": "~1.4.1",
"karma-chrome-launcher": "~2.0.0",
"karma-cli": "~1.0.1",
"karma-coverage-istanbul-reporter": "^0.2.0",
"karma-jasmine": "~1.1.0",
"karma-jasmine-html-reporter": "^0.2.2",
"protractor": "~5.1.0",
"ts-node": "~2.0.0",
"tslint": "~4.5.0",
"typescript": "~2.2.0"
},
"config": {
"forge": {
"make_targets": {
"win32": [
"squirrel"
],
"darwin": [
"zip"
],
"linux": [
"deb",
"rpm"
]
},
"electronPackagerConfig": {},
"electronWinstallerConfig": {
"name": ""
},
"electronInstallerDebian": {},
"electronInstallerRedhat": {},
"github_repository": {
"owner": "",
"name": ""
},
"windowsStoreConfig": {
"packageName": ""
}
}
}
}
Anyone face this issue before ? What would be a possible case of this error ?
Your help would highly appreciate . Thanks in advance.