How to deploy a nodejs app to heroku with github

Question

i want to deploy this application https://github.com/thefailtheory/neofreelance i am developping on my http://livecoding.tv channel to heroku but i am facing an error

the application is basic it will try to solve a problem on freelancing in the cloud i use everyday

here is the log :

2016-11-22T16:20:34.454131+00:00 app[web.1]: npm ERR! code ELIFECYCLE

2016-11-22T16:20:34.454297+00:00 app[web.1]: npm ERR! [email protected] start: `node app.js`

2016-11-22T16:20:34.454450+00:00 app[web.1]: npm ERR! Exit status 1

2016-11-22T16:20:34.454616+00:00 app[web.1]: npm ERR! 

2016-11-22T16:20:34.454772+00:00 app[web.1]: npm ERR! Failed at the [email protected] start script 'node app.js'.

2016-11-22T16:20:34.454931+00:00 app[web.1]: npm ERR! Make sure you have the latest version of node.js and npm installed.

2016-11-22T16:20:34.455081+00:00 app[web.1]: npm ERR! If you do, this is most likely a problem with the neofreelance package,

2016-11-22T16:20:34.455232+00:00 app[web.1]: npm ERR! not with npm itself.

2016-11-22T16:20:34.455378+00:00 app[web.1]: npm ERR! Tell the author that this fails on your system:

2016-11-22T16:20:34.455537+00:00 app[web.1]: npm ERR!     node app.js

2016-11-22T16:20:34.455684+00:00 app[web.1]: npm ERR! You can get information on how to open an issue for this project with:

2016-11-22T16:20:34.455833+00:00 app[web.1]: npm ERR!     npm bugs neofreelance

2016-11-22T16:20:34.456007+00:00 app[web.1]: npm ERR! Or if that isn't available, you can get their info via:

2016-11-22T16:20:34.456156+00:00 app[web.1]: npm ERR!     npm owner ls neofreelance

2016-11-22T16:20:34.456302+00:00 app[web.1]: npm ERR! There is likely additional logging output above.

2016-11-22T16:20:34.459887+00:00 app[web.1]: 

2016-11-22T16:20:34.460174+00:00 app[web.1]: npm ERR! Please include the following file with any support request:

2016-11-22T16:20:34.460356+00:00 app[web.1]: npm ERR!     /app/npm-debug.log

i have deployed an app via dropbox it worked without it, i should have one with nodejs ? — nazimboudeffa
– nazimboudeffa, Commented Nov 22, 2016 at 16:36
It is working but I don't think it's safe to rely on default behaviors (i.e. Heroku will by default run npm start). — user2345
– user2345, Commented Nov 22, 2016 at 16:42
i don't know too i am trying heroku with node these day because it's really funny to play with this kind of technology — nazimboudeffa
– nazimboudeffa, Commented Nov 22, 2016 at 16:52

user2345 · Accepted Answer · 2016-11-22 16:41:14Z

1

That is because Block-scoped declarations (let, const) are not yet supported in the Node version Heroku is using outside of strict mode.

So two options:

Add "use strict"; at the beginning of your file
Use var and not let.

answered Nov 22, 2016 at 16:41

user2345

3,2271 gold badge24 silver badges44 bronze badges

Sign up to request clarification or add additional context in comments.

5 Comments

nazimboudeffa Over a year ago

let worked fine with another project and a deployment with dropbox, so i am going to try the first option

nazimboudeffa Over a year ago

oh i see it's you use var and without use strict it works or you add use strict and you can code with let

user2345 Over a year ago

Yes. Or maybe you can specify a Node version that would accept let without strict mode. I don't know if Heroku would have it though.

nazimboudeffa Over a year ago

i would stay in simple way and use var but let gives a certain style in the code like avoiding ; or give a try to a specific version of node should be a nice feature to test

user2345 Over a year ago

FYI: ES6 features implemented in last versions of Node.js and versions of Node Heroku supports

Collectives™ on Stack Overflow

How to deploy a nodejs app to heroku with github

1 Answer 1

5 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

5 Comments

Your Answer

Sign up or log in

Post as a guest

Related