morgan won't load module 'debug' on Heroku - node.js

I have this in my express settings
var morgan = require("morgan");
app.use(morgan("dev"));
This works on my development macine, but crashes when I deploy to Heroku:
heroku[web.1]: Starting process with command `node server.js`
app[web.1]: Detected 512 MB available memory, 512 MB limit per process (WEB_MEMORY)
app[web.1]: Recommending WEB_CONCURRENCY=1
app[web.1]: at Module._compile (module.js:460:26)
app[web.1]: at Object.<anonymous> (/app/node_modules/morgan/index.js:16:13)
app[web.1]: at Function.Module._load (module.js:310:12)
app[web.1]: module.js:338
app[web.1]: at Module.require (module.js:365:17)
app[web.1]: throw err;
app[web.1]: at Module.load (module.js:355:32)
app[web.1]: at Object.Module._extensions..js (module.js:478:10)
app[web.1]: ^
app[web.1]: at Module.require (module.js:365:17)
app[web.1]: Error: Cannot find module 'debug'
app[web.1]: at Function.Module._resolveFilename (module.js:336:15)
app[web.1]: at Function.Module._load (module.js:278:25)
app[web.1]: at require (module.js:384:17)
heroku[web.1]: State changed from starting to crashed
I can replicate the problem by running node from the Heroku CLI, and trying to require morgan. Anyone have an idea what I'm doing wrong?
> var morgan = require("morgan");
Error: Cannot find module 'debug'
at Function.Module._resolveFilename (module.js:336:15)
at Function.Module._load (module.js:278:25)
at Module.require (module.js:365:17)
at require (module.js:384:17)
at Object.<anonymous> (/app/node_modules/morgan/index.js:16:13)
at Module._compile (module.js:460:26)
at Object.Module._extensions..js (module.js:478:10)
at Module.load (module.js:355:32)
at Function.Module._load (module.js:310:12)
at Module.require (module.js:365:17)
Line 16 of index.js reads var debug = require('debug')('morgan').
The debug module does lack an index.js, but has this in its package.json instead
"main": "./node.js",
"browser": "./browser.js",
"component": {
"scripts": {
"debug/index.js": "browser.js",
"debug/debug.js": "debug.js"
}
},

Turns out was something to do with an out-of-date package and updating to latest enabled me to progress

Related

heroku opencv4nodejs error in deployement

Error in deployment. How to solve this?
2020-11-08T09:30:21.366810+00:00 app[web.1]: Error: libopencv_core.so.3.4: cannot open shared object file: No such file or directory
2020-11-08T09:30:21.366811+00:00 app[web.1]: at Object.Module._extensions..node (internal/modules/cjs/loader.js:1003:18)
2020-11-08T09:30:21.366812+00:00 app[web.1]: at Module.load (internal/modules/cjs/loader.js:812:32)
2020-11-08T09:30:21.366812+00:00 app[web.1]: at Function.Module._load (internal/modules/cjs/loader.js:724:14)
2020-11-08T09:30:21.366812+00:00 app[web.1]: at Module.require (internal/modules/cjs/loader.js:849:19)
2020-11-08T09:30:21.366813+00:00 app[web.1]: at require (internal/modules/cjs/helpers.js:74:18)
2020-11-08T09:30:21.366813+00:00 app[web.1]: at Object.<anonymous> (/app/node_modules/opencv4nodejs/lib/cv.js:40:8)
2020-11-08T09:30:21.366813+00:00 app[web.1]: at Module._compile (internal/modules/cjs/loader.js:956:30)
2020-11-08T09:30:21.366814+00:00 app[web.1]: at Object.Module._extensions..js (internal/modules/cjs/loader.js:973:10)
2020-11-08T09:30:21.366814+00:00 app[web.1]: at Module.load (internal/modules/cjs/loader.js:812:32)
2020-11-08T09:30:21.366814+00:00 app[web.1]: at Function.Module._load (internal/modules/cjs/loader.js:724:14)
2020-11-08T09:30:21.366814+00:00 app[web.1]: at Module.require (internal/modules/cjs/loader.js:849:19)
2020-11-08T09:30:21.366815+00:00 app[web.1]: at require (internal/modules/cjs/helpers.js:74:18)
2020-11-08T09:30:21.366815+00:00 app[web.1]: at Object.<anonymous> (/app/node_modules/opencv4nodejs/lib/opencv4nodejs.js:11:79)
2020-11-08T09:30:21.366815+00:00 app[web.1]: at Module._compile (internal/modules/cjs/loader.js:956:30)
2020-11-08T09:30:21.366816+00:00 app[web.1]: at Object.Module._extensions..js (internal/modules/cjs/loader.js:973:10)
2020-11-08T09:30:21.366816+00:00 app[web.1]: at Module.load (internal/modules/cjs/loader.js:812:32)
The app crashes everytime showing this error. How to fix this?
Follow the below steps in order to use Open CV inside Heroku
Add heroku-buildpack-apt to your Heroku Build packs. You can go to your app's settings page and add build packs.
Create a file named Aptfile and add the following libs: libsm6, libxrender1, libfontconfig1, libice6. Follow the example below:
libsm6
libxrender1
libfontconfig1
libice6

Error: Cannot find module 'polka' on Heroku

I'm trying to deploy my sapper/svelte app to heroku but getting 'Error: Cannot find module 'polka'' this error. Interesting thing is that, it was perfectly fine and working. My package.json is correct and I am not checking my modules into git either. I tried disabling caching but it is no good. Anyone have any ideas?
2020-09-16T16:04:44.083385+00:00 app[web.1]: Error: Cannot find module 'polka'
2020-09-16T16:04:44.083386+00:00 app[web.1]: Require stack:
2020-09-16T16:04:44.083386+00:00 app[web.1]: - /app/__sapper__/build/server/server.js
2020-09-16T16:04:44.083386+00:00 app[web.1]: - /app/__sapper__/build/index.js
2020-09-16T16:04:44.083387+00:00 app[web.1]: at Function.Module._resolveFilename (internal/modules/cjs/loader.js:965:15)
2020-09-16T16:04:44.083392+00:00 app[web.1]: at Function.Module._load (internal/modules/cjs/loader.js:841:27)
2020-09-16T16:04:44.083392+00:00 app[web.1]: at Module.require (internal/modules/cjs/loader.js:1025:19)
2020-09-16T16:04:44.083393+00:00 app[web.1]: at require (internal/modules/cjs/helpers.js:72:18)
2020-09-16T16:04:44.083393+00:00 app[web.1]: at Object.<anonymous> (/app/__sapper__/build/server/server.js:4:13)
2020-09-16T16:04:44.083394+00:00 app[web.1]: at Module._compile (internal/modules/cjs/loader.js:1137:30)
2020-09-16T16:04:44.083394+00:00 app[web.1]: at Object.Module._extensions..js (internal/modules/cjs/loader.js:1157:10)
2020-09-16T16:04:44.083394+00:00 app[web.1]: at Module.load (internal/modules/cjs/loader.js:985:32)
2020-09-16T16:04:44.083395+00:00 app[web.1]: at Function.Module._load (internal/modules/cjs/loader.js:878:14)
2020-09-16T16:04:44.083395+00:00 app[web.1]: at Module.require (internal/modules/cjs/loader.js:1025:19) {
2020-09-16T16:04:44.083396+00:00 app[web.1]: code: 'MODULE_NOT_FOUND',
2020-09-16T16:04:44.083396+00:00 app[web.1]: requireStack: [
2020-09-16T16:04:44.083397+00:00 app[web.1]: '/app/__sapper__/build/server/server.js',
2020-09-16T16:04:44.083397+00:00 app[web.1]: '/app/__sapper__/build/index.js'
2020-09-16T16:04:44.083397+00:00 app[web.1]: ]
2020-09-16T16:04:44.083398+00:00 app[web.1]: }
It turns out polka's version on my package.json was set to 'next'. So I changed it to it latest stable version and deleted package.lock.json file and ran 'npm install' to create a new lock file and then pushed it to heroku. Works perfectly fine.

Unable to install npm package from github from package.json on heroku

I am using a package from github which is to be install from package.json file. But when I deploy the app on heroku, It is not able to install the package.
In package.json, I tried using different methods as below,
"sqlike": "git+https://username:access-token#github.com/vijjuu/SQLike.git"
"sqlike": "https://github.com/vijju/SQLike#master"
"sqlike": "https://github.com/vijjuu/SQLike/tarball/master"
"sqlike": "vijjuu/SQLike"
Error: Cannot find module 'SQLike'
2019-06-14T18:26:48.223971+00:00 app[web.1]: at Function.Module._resolveFilename (internal/modules/cjs/loader.js:636:15)
2019-06-14T18:26:48.223973+00:00 app[web.1]: at Function.Module._load (internal/modules/cjs/loader.js:562:25)
2019-06-14T18:26:48.223975+00:00 app[web.1]: at Module.require (internal/modules/cjs/loader.js:690:17)
2019-06-14T18:26:48.223976+00:00 app[web.1]: at require (internal/modules/cjs/helpers.js:25:18)
2019-06-14T18:26:48.223977+00:00 app[web.1]: at Object. (/app/server.js:2:18)
2019-06-14T18:26:48.223979+00:00 app[web.1]: at Module._compile (internal/modules/cjs/loader.js:776:30)
2019-06-14T18:26:48.223980+00:00 app[web.1]: at Object.Module._extensions..js (internal/modules/cjs/loader.js:787:10)
2019-06-14T18:26:48.223982+00:00 app[web.1]: at Module.load (internal/modules/cjs/loader.js:653:32)
2019-06-14T18:26:48.223983+00:00 app[web.1]: at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
2019-06-14T18:26:48.223985+00:00 app[web.1]: at Function.Module._load (internal/modules/cjs/loader.js:585:3)
1) Your exporting your sql like but not importing it anywhere.
2) You don't have a server like ( node ) to run it on Heroku.

Deployment of a MEAN stack full app to Heroku

I have successfully deployed some simple nodeJS applications using the Heroku platform.
Now I want to deploy a full application using:
1) a MongoDB database hosted at MongoLab;
2) AngularJS+Bootstrap for the front-end component;
Is this possible to deploy to Heroku?
If so, what changes do I need to apply to the git repo and the Procfile to make it work?
Right now, my github repo looks like this:
Is this the correct structure?
I'm aware of the need to listen on: process.env.PORT instead of a fixed one and I'm also aware of building the package.json automatically using npm init.
For some reason, I can't deploy and I get this error log:
2015-10-01T08:07:01.099635+00:00 heroku[web.1]: Starting process with command `node server.js`
2015-10-01T08:07:03.847353+00:00 app[web.1]: module.js:338
2015-10-01T08:07:03.847392+00:00 app[web.1]: at Module._compile (module.js:434:26)
2015-10-01T08:07:03.847378+00:00 app[web.1]: throw err;
2015-10-01T08:07:03.847394+00:00 app[web.1]: at Module.load (module.js:355:32)
2015-10-01T08:07:03.847380+00:00 app[web.1]: ^
2015-10-01T08:07:03.847393+00:00 app[web.1]: at Object.Module._extensions..js (module.js:452:10)
2015-10-01T08:07:03.847381+00:00 app[web.1]:
2015-10-01T08:07:03.847396+00:00 app[web.1]: at Function.Module._load (module.js:310:12)
2015-10-01T08:07:03.847383+00:00 app[web.1]: Error: Cannot find module 'xmlbuilder'
2015-10-01T08:07:03.847397+00:00 app[web.1]: at Module.require (module.js:365:17)
2015-10-01T08:07:03.847385+00:00 app[web.1]: at Function.Module._resolveFilename (module.js:336:15)
2015-10-01T08:07:03.847386+00:00 app[web.1]: at Function.Module._load (module.js:286:25)
2015-10-01T08:07:03.847387+00:00 app[web.1]: at Module.require (module.js:365:17)
2015-10-01T08:07:03.847389+00:00 app[web.1]: at require (module.js:384:17)
2015-10-01T08:07:03.847390+00:00 app[web.1]: at Object.<anonymous> (/app/node_modules/nodemailer/node_modules/aws-sdk/lib/xml/builder.js:2:15)
2015-10-01T08:07:03.847398+00:00 app[web.1]: at require (module.js:384:17)
2015-10-01T08:07:03.847400+00:00 app[web.1]: at Object.<anonymous> (/app/node_modules/nodemailer/node_modules/aws-sdk/lib/core.js:42:14)
2015-10-01T08:07:03.847401+00:00 app[web.1]: at Module._compile (module.js:434:26)
2015-10-01T08:07:03.847402+00:00 app[web.1]: at Object.Module._extensions..js (module.js:452:10)
2015-10-01T08:07:03.847403+00:00 app[web.1]: at Module.load (module.js:355:32)
2015-10-01T08:07:03.847405+00:00 app[web.1]: at Function.Module._load (module.js:310:12)
2015-10-01T08:07:04.829102+00:00 heroku[web.1]: State changed from starting to crashed
2015-10-01T08:07:04.815963+00:00 heroku[web.1]: Process exited with status 1
2015-10-01T08:07:23.430743+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=testeapp8.herokuapp.com request_id=185f6386-0265-494c-8e54-0cc5eec303e5 fwd="81.11.174.99" dyno= connect= service= status=503 bytes=
2015-10-01T08:15:48.636079+00:00 heroku[web.1]: State changed from crashed to starting
2015-10-01T08:15:52.227188+00:00 heroku[web.1]: Starting process with command `node server.js`
2015-10-01T08:15:55.940813+00:00 app[web.1]: module.js:338
2015-10-01T08:15:55.940832+00:00 app[web.1]: throw err;
2015-10-01T08:15:55.940834+00:00 app[web.1]: ^
2015-10-01T08:15:55.940835+00:00 app[web.1]:
2015-10-01T08:15:55.940837+00:00 app[web.1]: Error: Cannot find module 'xmlbuilder'
2015-10-01T08:15:55.940839+00:00 app[web.1]: at Function.Module._resolveFilename (module.js:336:15)
2015-10-01T08:15:55.940840+00:00 app[web.1]: at Function.Module._load (module.js:286:25)
2015-10-01T08:15:55.940841+00:00 app[web.1]: at Module.require (module.js:365:17)
2015-10-01T08:15:55.940843+00:00 app[web.1]: at require (module.js:384:17)
2015-10-01T08:15:55.940844+00:00 app[web.1]: at Object.<anonymous> (/app/node_modules/nodemailer/node_modules/aws-sdk/lib/xml/builder.js:2:15)
2015-10-01T08:15:55.940845+00:00 app[web.1]: at Module._compile (module.js:434:26)
2015-10-01T08:15:55.940847+00:00 app[web.1]: at Object.Module._extensions..js (module.js:452:10)
2015-10-01T08:15:55.940848+00:00 app[web.1]: at Module.load (module.js:355:32)
2015-10-01T08:15:55.940849+00:00 app[web.1]: at Function.Module._load (module.js:310:12)
2015-10-01T08:15:55.940850+00:00 app[web.1]: at Module.require (module.js:365:17)
2015-10-01T08:15:55.940852+00:00 app[web.1]: at require (module.js:384:17)
2015-10-01T08:15:55.940853+00:00 app[web.1]: at Object.<anonymous> (/app/node_modules/nodemailer/node_modules/aws-sdk/lib/core.js:42:14)
2015-10-01T08:15:55.940854+00:00 app[web.1]: at Module._compile (module.js:434:26)
2015-10-01T08:15:55.940857+00:00 app[web.1]: at Module.load (module.js:355:32)
2015-10-01T08:15:55.940858+00:00 app[web.1]: at Function.Module._load (module.js:310:12)
2015-10-01T08:15:55.940856+00:00 app[web.1]: at Object.Module._extensions..js (module.js:452:10)
2015-10-01T08:15:56.867807+00:00 heroku[web.1]: State changed from starting to crashed
2015-10-01T08:15:56.847462+00:00 heroku[web.1]: Process exited with status 1

Node JS + Express won't run, DEBUG=appname ./bin/www

I'm trying to get a node/express server running on a mac, and this command isn't running
DEBUG=ExpressApp ./bin/www
This is the error that gets thrown out:
module.js:340
throw err;
^
Error: Cannot find module 'express'
at Function.Module._resolveFilename (module.js:338:15)
at Function.Module._load (module.js:280:25)
at Module.require (module.js:364:17)
at require (module.js:380:17)
at Object.<anonymous> (/Users/jaysen/Desktop/ExpressApp/app.js:1:77)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Module.require (module.js:364:17)
UPDATE
After re-running npm install, I just get a blank line.

Resources