Failed Heroku deploy: sh: 1: ng: not found - node.js

Question

Failed Heroku deploy. Been looking at other similar stack overflow posts and changing package.json file trying solutions that have worked for others with no luck. I am not sure if this is a port issue, or a package.json issue or something completely different. Any help, tips or advice is greatly appreciated!
Heroku logs:
2019-02-09T08:32:56.609533+00:00 heroku[web.1]: State changed from crashed to starting
2019-02-09T08:33:00.956199+00:00 heroku[web.1]: Starting process with command `npm start`
2019-02-09T08:33:03.430137+00:00 heroku[web.1]: State changed from starting to crashed
2019-02-09T08:33:03.257739+00:00 app[web.1]:
2019-02-09T08:33:03.257781+00:00 app[web.1]: > the-lottery-genie-mean#0.0.0 start /app
2019-02-09T08:33:03.257783+00:00 app[web.1]: > ng serve
2019-02-09T08:33:03.257784+00:00 app[web.1]:
2019-02-09T08:33:03.294426+00:00 app[web.1]: sh: 1: ng: not found
2019-02-09T08:33:03.304958+00:00 app[web.1]: npm ERR! file sh
2019-02-09T08:33:03.305986+00:00 app[web.1]: npm ERR! code ELIFECYCLE
2019-02-09T08:33:03.306367+00:00 app[web.1]: npm ERR! errno ENOENT
2019-02-09T08:33:03.309015+00:00 app[web.1]: npm ERR! syscall spawn
2019-02-09T08:33:03.310700+00:00 app[web.1]: npm ERR! the-lottery-genie-mean#0.0.0 start: `ng serve`
2019-02-09T08:33:03.310912+00:00 app[web.1]: npm ERR! spawn ENOENT
2019-02-09T08:33:03.311266+00:00 app[web.1]: npm ERR!
2019-02-09T08:33:03.311514+00:00 app[web.1]: npm ERR! Failed at the the-lottery-genie-mean#0.0.0 start script.
2019-02-09T08:33:03.314421+00:00 app[web.1]: npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
2019-02-09T08:33:03.324652+00:00 app[web.1]:
2019-02-09T08:33:03.324892+00:00 app[web.1]: npm ERR! A complete log of this run can be found in:
2019-02-09T08:33:03.325013+00:00 app[web.1]: npm ERR! /app/.npm/_logs/2019-02-09T08_33_03_316Z-debug.log
2019-02-09T08:33:03.411224+00:00 heroku[web.1]: Process exited with status 1
package.json:
{
"name": "the-lottery-genie-mean",
"version": "0.0.0",
"scripts": {
"preinstall": "npm link #angular/cli ",
"heroku-postbuild": "ng build --prod",
"postinstall": "",
"ng": "ng",
"start": "node server.js",
"build": "ng build",
"test": "ng test",
"lint": "ng lint",
"e2e": "ng e2e"
},
"private": true,
"dependencies": {
"#angular/cli": "^7.1.4",
"#angular/compiler-cli": "~7.0.0",
"#angular/animations": "~7.0.0",
"#angular/common": "~7.0.0",
"#angular/compiler": "~7.0.0",
"#angular/core": "~7.0.0",
"#angular/forms": "~7.0.0",
"#angular/http": "~7.0.0",
"#angular/platform-browser": "~7.0.0",
"#angular/platform-browser-dynamic": "~7.0.0",
"#angular/router": "~7.0.0",
"core-js": "^2.5.4",
"json": "^9.0.6",
"rxjs": "~6.3.3",
"zone.js": "~0.8.26"
},
"devDependencies": {
"#angular-devkit/build-angular": "^0.13.1",
"#angular/language-service": "~7.0.0",
"#types/jasmine": "~2.8.8",
"#types/jasminewd2": "~2.0.3",
"#types/node": "~8.9.4",
"codelyzer": "~4.5.0",
"jasmine-core": "~2.99.1",
"jasmine-spec-reporter": "~4.2.1",
"karma": "~3.0.0",
"karma-chrome-launcher": "~2.2.0",
"karma-coverage-istanbul-reporter": "~2.0.1",
"karma-jasmine": "~1.1.2",
"karma-jasmine-html-reporter": "^0.2.2",
"protractor": "~5.4.0",
"ts-node": "~7.0.0",
"tslint": "~5.11.0",
"typescript": "~3.1.1"
},
"engines": {
"node": "10.15.1",
"npm": "6.4.1"
}
}
server.js file
app.listen(PORT, '0.0.0.0', function () {
console.log("Node app is running at localhost:" + app.get('port'));
})

Answer 1

Did you check the debug log here /app/.npm/_logs/2019-02-09T08_33_03_316Z-debug.log ?
I suggest looking into the debug log first to get us more details to solve the problem.
UPDATE
Its an H10 error. "heroku[router]: at=error code=H10 desc="App crashed"
method=GET path="/favicon.ico" host=angular-lottery-genie.herokuapp.com
request_id=30e63a79-c395-4d2a-9987-938bcc350629 fwd="50.250.113.70" dyno=
connect= service= status=503 bytes= protocol=https"
Your app crashed. Here are some things you can do:
1.) Restart heroku. You should have heroku CLI installed. Here's the link: Heroku CLI Install . And run heroku restart on your terminal.
2.) Use port that Heroku dynamically sets which can be accessed usually at process.env.PORT, and set your desired port as backup:
app.listen(process.env.PORT || 3000, function(){
console.log("Node app is running at localhost:" + app.get('port'));
});
3.) Try to check your node and npm version by typing in your terminal:
node --version
npm --version
And update the node and npm versions indicated under your package.json file:
"engines": {
"node": "10.15.1",
"npm": "6.4.1"
}
Another UPDATE for your questions:
npm ERR! enoent ENOENT: no such file or directory
These errors are usually related to corruption or incompatibility of packages. What you can do:
1.) Make sure no other instances of node are running in the backgound and retry your npm command.
2.) Delete the node_modules directory and package-lock.json (if you have any). Reinstall packages running npm install (or any command you're using to install the packages) in your terminal inside your project directory.
3.) Upgrade node to the latest version, delete node_modules directory and package-lock.json, and reinstall the packages.
4.) If npm still does not work for you, try yarn package manager (Yarn).
5.) If packages installation still fail, check the error logs file for a detailed report of the error.
Hope this helps!

Answer 2

You might need to add the devkit/builder, make sure its in the right sequence. I added it in bold so make sure if you are gonna copy paste to remove the asterix from the beginning and end.
"#angular/cli": "^7.1.4",
"#angular/compiler-cli": "~7.0.0",
"#angular/animations": "~7.0.0",
"#angular/common": "~7.0.0",
"#angular/compiler": "~7.0.0",
"#angular/core": "~7.0.0",
"#angular/forms": "~7.0.0",
"#angular/http": "~7.0.0",
"#angular/platform-browser": "~7.0.0",
"#angular/platform-browser-dynamic": "~7.0.0",
"#angular/router": "~7.0.0",
**"#angular-devkit/build-angular": "^0.13.1",
"#angular/language-service": "~7.0.0",**
"core-js": "^2.5.4",
"json": "^9.0.6",
"rxjs": "~6.3.3",
"zone.js": "~0.8.26"

Answer 3

In my experience, the deployment of an app that works locally is not always straightforward in Heroku. There are several cases like this in StackOverflow without a definitive solution, specially related to "'library' not found". For someone with a similar problem (trying to deploy AngularJS in Heroku) I would recommend check first functional tutorials like these:
https://devcenter.heroku.com/articles/mean-apps-restful-api
Almost-Oficial documentation. It describes a more complex app but you can discard some things.
https://medium.com/better-programming/how-to-deploy-your-angular-9-app-to-heroku-in-minutes-51d171c2f0d This guy shows a working Angular tutorial deployed in Heroku.

Answer 4

move some devDependencies to dependencies (angular 9 example)
npm i #angular/cli #angular-devkit/build-angular #angular/compiler-cli typescript --save-prod
or set NPM_CONFIG_PRODUCTION to false
here is an answer to similar question