Error while trying to run 'npm start' - node.js

Question

I am getting the below error while trying to run npm start without updating the node version nor the npm version.
ERROR
npm ERR! Windows_NT 6.1.7601
npm ERR! argv "C:\Work\node-v6.10.3-win-x64\node-v6.10.3-win-x64\node.exe" "
C:\Work\node-v6.10.3-win-x64\node-v6.10.3-win-x64\node_modules\npm\bin\np
m-cli.js" "start"
npm ERR! node v6.10.3
npm ERR! npm v3.10.10
npm ERR! code ELIFECYCLE
npm ERR! ucps-online-client#1.0.0 start: ng serve --proxy-config proxy.conf.jso
n
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the ucps-online-client#1.0.0 start script 'ng serve --proxy-c
onfig proxy.conf.json'.
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 ucps-online-client pa
ckage,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR! ng serve --proxy-config proxy.conf.json
npm ERR! You can get information on how to open an issue for this project with:
npm ERR! npm bugs ucps-online-client
npm ERR! Or if that isn't available, you can get their info via:
npm ERR! npm owner ls ucps-online-client
npm ERR! There is likely additional logging output above.
npm ERR! Please include the following file with any support request:
npm ERR! C:\Work\workspace_Nov9_commit\ucps-online-parent\ucps-online-client
\npm-debug.log
Package.json
{
"name": "ucps-online-client",
"version": "1.0.0",
"private": true,
"license": "MIT",
"angular-cli": {},
"scripts": {
"ng": "ng",
"start": "ng serve --proxy-config proxy.conf.json",
"lint": "ng lint"
},
"dependencies": {
"#angular/animations": "^4.0.1",
"#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",
"bootstrap": "3.3.7",
"core-js": "^2.4.1",
"font-awesome": "4.6.3",
"jquery": "2.2.3",
"latest-version": "^3.1.0",
"moment": "2.17.1",
"ng2-bootstrap": "1.6.3",
"ng2-datepicker": "^1.8.3",
"ng2-datetime-picker": "^0.12.5",
"ng2-pagination": "^2.0.2",
"primeng": "4.1.0",
"rxjs": "^5.0.1",
"ts-helpers": "^1.1.1",
"zone.js": "^0.8.5"
},
"devDependencies": {
"#angular/compiler-cli": "^4.0.0",
"#types/node": "^7.0.12",
"#angular/cli": "^1.0.0",
"codelyzer": "^2.1.1",
"ts-node": "^3.0.2",
"tslint": "^5.0.0",
"typescript": "^2.2.2"
},
"engines": {
"node": ">= 6.9.1",
"npm": ">= 3"
}
}