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Heroku Error. Cannot find module 'Mongoose'

For some odd reason (i have been deployed on Heroku for around 1.5 years) my instance decided to throw a weird error regarding not finding 'mongoose' after attempting to deploy again. Everything works on my local server and my .gitignore file ignores Node Modules. This is a React.js app with Expressjs and Mongoose.
Here is my Package.json:
{
"name": "drg-coming-soon",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"build": "webpack",
"server": "node server/index.js",
"start": "webpack && node server/index.js",
"react": "webpack -d --watch"
},
"heroku-run-build-script": true,
"author": "Randy Thomas",
"license": "ISC",
"devDependencies": {
"axios": "^0.18.0",
"babel-core": "^6.23.1",
"babel-loader": "^6.3.2",
"babel-preset-es2015": "^6.22.0",
"babel-preset-react": "^6.23.0",
"body-parser": "^1.18.3",
"express": "^4.15.0",
"jquery": "^3.1.1",
"mongoose": "^6.2.7",
"react-awesome-modal": "^2.0.5",
"request": "^2.81.0",
"webpack": "^4.28.3"
},
"dependencies": {
"axios": "^0.18.0",
"css-loader": "^2.0.1",
"dotenv": "^6.2.0",
"file-loader": "^2.0.0",
"react": "^15.4.2",
"react-autosuggest": "^9.4.3",
"react-dom": "^15.4.2",
"react-image": "^1.5.1",
"react-router": "^4.3.1",
"react-router-dom": "^4.3.1",
"react-scripts": "^2.1.1",
"style-loader": "^0.23.1",
"twilio": "^3.33.2",
"url-loader": "^1.1.2",
"mongoose": "^6.2.7",
"webpack": "^4.28.3"
}
}
Here is my webpack.config.js
const path = require('path');
const SRC_DIR = path.join(__dirname, '/client/src');
const DIST_DIR = path.join(__dirname, '/client/dist');
module.exports = {
entry: `${SRC_DIR}/index.js`,
output: {
filename: 'bundle.js',
path: DIST_DIR,
},
module: {
//changed from loaders to rules
loaders: [
{
test: /\.jsx?/,
include: SRC_DIR,
loader: 'babel-loader',
query: {
presets: [
'#babel/preset-env',
'#babel/preset-react'
],
},
},
],
},
};
Here is my Database folder:
require('dotenv').config();
const mongoose = require('mongoose');
// dev
// process.env.mongourl
mongoose.connect(process.env.mongourl)
.catch(err => console.log('Mongo connection error', err));
const db = mongoose.connection;
db.on('error', console.error.bind(console, 'connection error:'));
db.once('open', () => {
console.log('MongoDB has connected');
});
// schemas
const comingSoonSchema = ({
address: String,
desc: String,
sqft: Number,
bed: String,
bath: String,
photoLink: String,
agent: String,
price: String,
year: Number,
eta: String,
premarket: String,
status: String,
timeStamp: { type: Date, default: Date.now },
})
// models
const ComingSoon = mongoose.model('ComingSoon', comingSoonSchema);
function save(e) {
console.log(e, "SAVE FUNC");
const obj = new ComingSoon({
address: e.address,
desc: e.desc,
sqft: e.sqft,
bed: e.bed,
bath: e.bath,
photoLink: e.photoLink,
agent: e.agent,
price: e.price,
year: e.year,
eta: e.eta,
status: e.status,
premarket: e.premarket
})
obj.save();
console.log("Data saved to MongoDB Database");
}
const funcs = {
save, ComingSoon,
};
module.exports = funcs;
And lastly here is the persisting error:
2022-03-23T01:33:06.685994+00:00 heroku[web.1]: Starting process with command `npm start`
2022-03-23T01:33:07.919434+00:00 app[web.1]:
2022-03-23T01:33:07.919447+00:00 app[web.1]: > drg-coming-soon#1.0.0 start
2022-03-23T01:33:07.919448+00:00 app[web.1]: > webpack && node server/index.js
2022-03-23T01:33:07.919448+00:00 app[web.1]:
2022-03-23T01:33:07.965317+00:00 app[web.1]: One CLI for webpack must be installed. These are recommended choices, delivered as separate packages:
2022-03-23T01:33:07.965319+00:00 app[web.1]: - webpack-cli (https://github.com/webpack/webpack-cli)
2022-03-23T01:33:07.965319+00:00 app[web.1]: The original webpack full-featured CLI.
2022-03-23T01:33:07.965784+00:00 app[web.1]: We will use "npm" to install the CLI via "npm install -D".
2022-03-23T01:33:08.131129+00:00 app[web.1]: Do you want to install 'webpack-cli' (yes/no): node:internal/modules/cjs/loader:936
2022-03-23T01:33:08.131131+00:00 app[web.1]: throw err;
2022-03-23T01:33:08.131131+00:00 app[web.1]: ^
2022-03-23T01:33:08.131132+00:00 app[web.1]:
2022-03-23T01:33:08.131132+00:00 app[web.1]: Error: Cannot find module 'mongoose'
2022-03-23T01:33:08.131132+00:00 app[web.1]: Require stack:
2022-03-23T01:33:08.131133+00:00 app[web.1]: - /app/database/index.js
2022-03-23T01:33:08.131136+00:00 app[web.1]: - /app/server/index.js
2022-03-23T01:33:08.131136+00:00 app[web.1]: at Function.Module._resolveFilename (node:internal/modules/cjs/loader:933:15)
2022-03-23T01:33:08.131137+00:00 app[web.1]: at Function.Module._load (node:internal/modules/cjs/loader:778:27)
2022-03-23T01:33:08.131137+00:00 app[web.1]: at Module.require (node:internal/modules/cjs/loader:1005:19)
2022-03-23T01:33:08.131138+00:00 app[web.1]: at require (node:internal/modules/cjs/helpers:102:18)
2022-03-23T01:33:08.131138+00:00 app[web.1]: at Object.<anonymous> (/app/database/index.js:2:18)
2022-03-23T01:33:08.131139+00:00 app[web.1]: at Module._compile (node:internal/modules/cjs/loader:1103:14)
2022-03-23T01:33:08.131139+00:00 app[web.1]: at Object.Module._extensions..js (node:internal/modules/cjs/loader:1157:10)
2022-03-23T01:33:08.131140+00:00 app[web.1]: at Module.load (node:internal/modules/cjs/loader:981:32)
2022-03-23T01:33:08.131140+00:00 app[web.1]: at Function.Module._load (node:internal/modules/cjs/loader:822:12)
2022-03-23T01:33:08.131140+00:00 app[web.1]: at Module.require (node:internal/modules/cjs/loader:1005:19) {
2022-03-23T01:33:08.131141+00:00 app[web.1]: code: 'MODULE_NOT_FOUND',
2022-03-23T01:33:08.131141+00:00 app[web.1]: requireStack: [ '/app/database/index.js', '/app/server/index.js' ]
2022-03-23T01:33:08.131142+00:00 app[web.1]: }
2022-03-23T01:33:08.265674+00:00 heroku[web.1]: Process exited with status 1
2022-03-23T01:33:08.447674+00:00 heroku[web.1]: State changed from starting to crashed
2022-03-23T01:32:58.202124+00:00 app[api]: Release v158 created by user bookingrlthomas#gmail.com
2022-03-23T01:32:58.202124+00:00 app[api]: Deploy ad551b5e by user bookingrlthomas#gmail.com
2022-03-23T01:33:00.927332+00:00 app[api]: Deploy ad551b5e by user bookingrlthomas#gmail.com
2022-03-23T01:33:00.927332+00:00 app[api]: Release v159 created by user bookingrlthomas#gmail.com
2022-03-23T01:33:51.331557+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=drgcomingsoonlistings.herokuapp.com request_id=fd27788b-e166-49fd-8830-b0da493e7e62 fwd="47.45.81.207" dyno= connect= service= status=503 bytes= protocol=https
2022-03-23T01:33:52.166634+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=drgcomingsoonlistings.herokuapp.com request_id=4967681e-a5a9-41b9-9129-65258f9b9983 fwd="47.45.81.207" dyno= connect= service= status=503 bytes= protocol=https

The error is most likely coming from the fact that you have mongoose in your "devDependencies". Try moving it to your "dependencies", then running npm install. You may run into the same issue with express and a few others under "devDependencies". Hope this helps.

It does not make any sense, but if mongoose is both in dev dependencies and in dependencies, heroku goes nuts. It can be ONLY in dependencies. After deleting it from dev dependencies, do npm install. It will work without any issues.

NodeJS: Heroku deployment internal server, EJS template "not a function" error

I have a NodeJS app, with EJS as the templating engine, and when I deploy to Heroku I'm getting an internal server error. Here are the logs:
2022-01-20T13:30:24.000000+00:00 app[api]: Build started by user tylerdukedev#gmail.com
2022-01-20T13:30:44.605827+00:00 app[api]: Release v18 created by user tylerdukedev#gmail.com
2022-01-20T13:30:44.605827+00:00 app[api]: Deploy 82e13b43 by user tylerdukedev#gmail.com
2022-01-20T13:30:45.000000+00:00 app[api]: Build succeeded
2022-01-20T13:30:45.206696+00:00 heroku[web.1]: Restarting
2022-01-20T13:30:45.219319+00:00 heroku[web.1]: State changed from up to starting
2022-01-20T13:30:45.973448+00:00 heroku[web.1]: Stopping all processes with SIGTERM
2022-01-20T13:30:46.136388+00:00 heroku[web.1]: Process exited with status 143
2022-01-20T13:30:48.058009+00:00 heroku[web.1]: Starting process with command `npm start`
2022-01-20T13:30:50.044342+00:00 app[web.1]:
2022-01-20T13:30:50.115141+00:00 app[web.1]: > food-blog#1.0.0 start /app
2022-01-20T13:30:50.115144+00:00 app[web.1]: > node app.js
2022-01-20T13:30:50.115144+00:00 app[web.1]:
2022-01-20T13:30:50.762969+00:00 app[web.1]: Listening on 47634
2022-01-20T13:30:51.003784+00:00 app[web.1]: Connected to MongoDB
2022-01-20T13:30:51.195440+00:00 heroku[web.1]: State changed from starting to up
2022-01-20T13:30:54.911676+00:00 heroku[router]: at=info method=GET path="/" host=food-blog-tdukedev.herokuapp.com request_id=d02d86c4-86b2-4e44-81c8-83467c04f03d fwd="73.129.233.103" dyno=web.1 connect=0ms service=74ms status=500 bytes=404 protocol=https
2022-01-20T13:30:54.917473+00:00 app[web.1]: TypeError: /app/server/views/index.ejs:132
2022-01-20T13:30:54.917479+00:00 app[web.1]: 130| <div class="card-body p-4">
2022-01-20T13:30:54.917481+00:00 app[web.1]: 131| <div class="badge bg-primary bg-gradient rounded-pill mb-2" id="cat-1">
2022-01-20T13:30:54.917482+00:00 app[web.1]: >> 132| <%= entries.at(-1).category %>
2022-01-20T13:30:54.917482+00:00 app[web.1]: 133| </div>
2022-01-20T13:30:54.917483+00:00 app[web.1]: 134| <a class="text-decoration-none link-dark stretched-link" href="#!">
2022-01-20T13:30:54.917483+00:00 app[web.1]: 135| <h5 class="card-title mb-3 animate__animated" id="title-1">
2022-01-20T13:30:54.917483+00:00 app[web.1]:
2022-01-20T13:30:54.917484+00:00 app[web.1]: entries.at is not a function
2022-01-20T13:30:54.917484+00:00 app[web.1]: at eval (eval at compile (/app/node_modules/ejs/lib/ejs.js:662:12), <anonymous>:12:34)
2022-01-20T13:30:54.917485+00:00 app[web.1]: at index (/app/node_modules/ejs/lib/ejs.js:692:17)
2022-01-20T13:30:54.917485+00:00 app[web.1]: at tryHandleCache (/app/node_modules/ejs/lib/ejs.js:272:36)
2022-01-20T13:30:54.917486+00:00 app[web.1]: at View.exports.renderFile [as engine] (/app/node_modules/ejs/lib/ejs.js:489:10)
2022-01-20T13:30:54.917486+00:00 app[web.1]: at View.render (/app/node_modules/express/lib/view.js:135:8)
2022-01-20T13:30:54.917486+00:00 app[web.1]: at tryRender (/app/node_modules/express/lib/application.js:640:10)
2022-01-20T13:30:54.917486+00:00 app[web.1]: at Function.render (/app/node_modules/express/lib/application.js:592:3)
2022-01-20T13:30:54.917487+00:00 app[web.1]: at ServerResponse.render (/app/node_modules/express/lib/response.js:1017:7)
2022-01-20T13:30:54.917487+00:00 app[web.1]: at ServerResponse.res.render (/app/node_modules/express-ejs-layouts/lib/express-layouts.js:77:18)
2022-01-20T13:30:54.917488+00:00 app[web.1]: at exports.homepage (/app/server/controllers/homepageController.js:6:15)
entries.at is pulling from a MongoDB database with Mongoose, it's populating data from the db.
I've tried to set the views directory to be relative and absolute (per an SO question/answer), and that didn't work.
Here's what entries references:
homepageController.js:
// get home page ('index');
const Entry = require("../models/posts");
exports.homepage = async(req,res) => {
let entries = await Entry.find({})
await res.render('index', {
title: 'Food Blog | Tyler Duke Dev',
entries
});
};
the model:
const mongoose = require('mongoose');
const entrySchema = new mongoose.Schema({
category: {
type: String,
required: true
},
title: {
type: String,
required: true
},
desc: {
type: String,
required: true
},
author: {
type: String,
required: true
},
dateCreated: {
type: Date,
required: true
},
readTime: {
type: String,
required: true
}
})
const Entry = mongoose.model('Entry', entrySchema);
module.exports = Entry;

Nuxt.js fails to start up with auth module

npx create-nuxt-app client and set it up. Run npm run dev and everything works.
I start auth setup with npm install #nuxtjs/auth
add '#nuxtjs/auth' module in nuxt.config.js
add example auth strategy like so
auth: {
strategies: {
local: {
endpoints: {
login: { url: '/api/login', method: 'post' },
},
tokenRequired: false,
tokenType: false
}
}
},
Add the example vue store and save it in store/index.js:
export const state = () => ({
counter: 0
})
export const mutations = {
increment(state) {
state.counter++
}
}
I run npm run dev, everything compiles and init message shows to go to http://localhost:3000/. Trying to load it in the browser, the URL continues to load after initial loading and does not end. Node process starts to use 100% of the CPU and after several minutes prints this and quits:
<--- Last few GCs --->
[34438:0x38ef0c0] 323677 ms: Scavenge 2003.9 (2048.6) -> 2003.2 (2049.1) MB, 10.9 / 0.0 ms (average mu = 0.209, current mu = 0.192) allocation failure
[34438:0x38ef0c0] 323728 ms: Scavenge 2004.6 (2049.6) -> 2004.0 (2049.9) MB, 12.4 / 0.0 ms (average mu = 0.209, current mu = 0.192) allocation failure
[34438:0x38ef0c0] 323778 ms: Scavenge 2005.4 (2050.4) -> 2004.8 (2050.6) MB, 10.9 / 0.0 ms (average mu = 0.209, current mu = 0.192) allocation failure
<--- JS stacktrace --->
==== JS stack trace =========================================
0: ExitFrame [pc: 0x13cf019]
Security context: 0x29f654d808d1 <JSObject>
1: inspect(aka inspect) [0x32d8b34ca9f9] [internal/util/inspect.js:~240] [pc=0xee1e7f4f44c](this=0x1cbf81fc04b1 <undefined>,0x29f654d98bc1 <JSFunction Boolean (sfi = 0x3f35983d3769)>,0x02b5724d8a71 <Object map = 0x1bc8fcdd6919>)
2: /* anonymous */ [0x9a2eaaec139] [/home/myUserName/Documents/projectFile/client/node_modules/esm/esm.js:~1] [pc=0xee1e7e6e063](...
FATAL ERROR: Ineffective mark-compacts near heap limit Allocation failed - JavaScript heap out of memory
1: 0xa093f0 node::Abort() [node]
2: 0xa097fc node::OnFatalError(char const*, char const*) [node]
3: 0xb842ae v8::Utils::ReportOOMFailure(v8::internal::Isolate*, char const*, bool) [node]
4: 0xb84629 v8::internal::V8::FatalProcessOutOfMemory(v8::internal::Isolate*, char const*, bool) [node]
5: 0xd30fe5 [node]
6: 0xd31676 v8::internal::Heap::RecomputeLimits(v8::internal::GarbageCollector) [node]
7: 0xd3def5 v8::internal::Heap::PerformGarbageCollection(v8::internal::GarbageCollector, v8::GCCallbackFlags) [node]
8: 0xd3eda5 v8::internal::Heap::CollectGarbage(v8::internal::AllocationSpace, v8::internal::GarbageCollectionReason, v8::GCCallbackFlags) [node]
9: 0xd4185c v8::internal::Heap::AllocateRawWithRetryOrFail(int, v8::internal::AllocationType, v8::internal::AllocationOrigin, v8::internal::AllocationAlignment) [node]
10: 0xd0830b v8::internal::Factory::NewFillerObject(int, bool, v8::internal::AllocationType, v8::internal::AllocationOrigin) [node]
11: 0x1049f4e v8::internal::Runtime_AllocateInYoungGeneration(int, unsigned long*, v8::internal::Isolate*) [node]
12: 0x13cf019 [node]
Aborted
I tried this start to finish with node v10.15.3 and v12.18.3, the same result. Versions from package.json:
"dependencies": {
"#nuxtjs/auth": "^4.9.1",
"#nuxtjs/axios": "^5.12.0",
"bootstrap": "^4.5.0",
"bootstrap-vue": "^2.15.0",
"nuxt": "^2.14.0"
}
and npx create-nuxt-app --version shows create-nuxt-app/3.2.0 linux-x64 node-v12.18.3. OS is Solus 4.1 Fortitude.
What is going wrong here? If this is a known bug, are there versions/workaround that works?

Setting baseURL property under for axios in nuxt.config.js solved my issue:
axios: {
baseURL: '/'
}

Allocation failed - JavaScript heap out of memory

I am working on a project which is developing with NextJs and ReactJs. Suddenly this project showing Allocation failed - JavaScript heap out of memory problem. I have tried all the resources online but, those are not working for me. I think, maybe something error occurred in next.config.js or webpack but, I am not sure about it.
package.json
{
"name": "personal-blog",
"version": "0.1.0",
"private": true,
"scripts": {
"dev": "next dev",
"build": "next build",
"start": "next start"
},
"dependencies": {
"#fortawesome/fontawesome-svg-core": "^1.2.28",
"#fortawesome/free-brands-svg-icons": "^5.13.0",
"#fortawesome/free-regular-svg-icons": "^5.13.0",
"#fortawesome/free-solid-svg-icons": "^5.13.0",
"#fortawesome/react-fontawesome": "^0.1.9",
"bootstrap": "^4.4.1",
"dotenv": "^8.2.0",
"isomorphic-unfetch": "^3.0.0",
"moment": "^2.24.0",
"next": "9.3.5",
"node-fetch": "^2.6.0",
"react": "16.13.1",
"react-bootstrap": "^1.0.1",
"react-debounce-input": "^3.2.2",
"react-dom": "16.13.1",
"react-moment": "^0.9.7"
},
"devDependencies": {
"sass": "^1.26.5"
}
}
next.config.js
const webpack = require("webpack");
require("dotenv").config();
module.exports = {
webpack: config => {
config.node = {
fs: 'empty'
}
const env = Object.keys(process.env).reduce((acc, curr) => {
acc[`process.env.${curr}`] = JSON.stringify(process.env[curr]);
return acc;
}, {});
config.plugins.push(new webpack.DefinePlugin(env));
return config
}
}
Error in Visual Code terminal
<--- Last few GCs --->
[4562:0x103e3b000] 161295 ms: Mark-sweep 2041.6 (2051.3) -> 2040.7 (2051.3) MB, 3551.0 / 0.0 ms (average mu = 0.370, current mu = 0.462) allocation failure scavenge might not succeed
[4562:0x103e3b000] 170945 ms: Mark-sweep 2041.8 (2051.5) -> 2041.2 (2051.5) MB, 8225.9 / 0.2 ms (average mu = 0.253, current mu = 0.148) allocation failure GC in old space requested
<--- JS stacktrace --->
==== JS stack trace =========================================
0: ExitFrame [pc: 0x10072e699]
Security context: 0x3ecf281008a1 <JSObject>
1: createElement(aka createElement) [0x3ecf3bee16f9] [/Users/pater/Desktop/personal-blog/node_modules/react/cjs/react.development.js:~727] [pc=0x1d716fb9bc21](this=0x3ecfe42004a9 <undefined>,0x3ecffb609dc1 <String[#3]: div>,0x3ecfe4f40389 <Object map = 0x3ecfdd48e531>,0x3ecfe42004a9 <undefined>)
2: arguments adaptor frame: 2->3
3: createElement...
FATAL ERROR: Ineffective mark-compacts near heap limit Allocation failed - JavaScript heap out of memory
Writing Node.js report to file: report.20200424.120915.4562.0.001.json
Node.js report completed
1: 0x100b6a52a node::Abort() (.cold.1) [/usr/local/bin/node]
2: 0x100081f70 node::FatalError(char const*, char const*) [/usr/local/bin/node]
3: 0x100082098 node::OnFatalError(char const*, char const*) [/usr/local/bin/node]
4: 0x10017461d v8::Utils::ReportOOMFailure(v8::internal::Isolate*, char const*, bool) [/usr/local/bin/node]
5: 0x1001745c7 v8::internal::V8::FatalProcessOutOfMemory(v8::internal::Isolate*, char const*, bool) [/usr/local/bin/node]
6: 0x10028a569 v8::internal::Heap::FatalProcessOutOfMemory(char const*) [/usr/local/bin/node]
7: 0x10028b8ee v8::internal::Heap::MarkCompactPrologue() [/usr/local/bin/node]
8: 0x1002894eb v8::internal::Heap::PerformGarbageCollection(v8::internal::GarbageCollector, v8::GCCallbackFlags) [/usr/local/bin/node]
9: 0x100287f93 v8::internal::Heap::CollectGarbage(v8::internal::AllocationSpace, v8::internal::GarbageCollectionReason, v8::GCCallbackFlags) [/usr/local/bin/node]
10: 0x10028f6da v8::internal::Heap::AllocateRawWithLightRetry(int, v8::internal::AllocationType, v8::internal::AllocationAlignment) [/usr/local/bin/node]
11: 0x10028fbd0 v8::internal::Heap::AllocateRawWithRetryOrFail(int, v8::internal::AllocationType, v8::internal::AllocationAlignment) [/usr/local/bin/node]
12: 0x10026d8c6 v8::internal::Factory::NewFillerObject(int, bool, v8::internal::AllocationType) [/usr/local/bin/node]
13: 0x1004bc90e v8::internal::Runtime_AllocateInOldGeneration(int, unsigned long*, v8::internal::Isolate*) [/usr/local/bin/node]
14: 0x10072e699 Builtins_CEntry_Return1_DontSaveFPRegs_ArgvOnStack_NoBuiltinExit [/usr/local/bin/node]
15: 0x1d716fb9bc21
Abort

Deploying app on Heroku with Rails (error 500)

I am trying to deploy my application on Heroku, but it is showing following error
"We're sorry, but something went wrong."
So I've check my heroku logs, here is 2 problems I have
2019-05-22T13:56:04.512197+00:00 heroku[router]: at=info method=GET path="/" host=concierge-at-sea.herokuapp.com request_id=4f5fe5ef-ab45-4012-97be-87de88b8fdb5 fwd="89.95.71.184" dyno=web.1 connect=0ms service=1496ms status=500 bytes=1827 protocol=https
2019-05-22T13:55:35.566494+00:00 heroku[web.1]: Stopping all processes with SIGTERM
2019-05-22T13:55:35.686117+00:00 heroku[web.1]: Process exited with status 143
This is for an app with devise, I've already tried heroku restart in order to restart my dyno's
But I don't understand the error 500, in local everything works
Here is my heroku logs
2019-05-22T13:53:09.716085+00:00 app[web.1]: ],
2019-05-22T13:53:09.716086+00:00 app[web.1]: "js.map": [
2019-05-22T13:53:09.716087+00:00 app[web.1]: "/packs/js/application-b9d827093751ba55443e.js.map"
2019-05-22T13:53:09.716089+00:00 app[web.1]: ]
2019-05-22T13:53:09.716090+00:00 app[web.1]: },
2019-05-22T13:53:09.716091+00:00 app[web.1]: "map": {
2019-05-22T13:53:09.716093+00:00 app[web.1]: "css": [
2019-05-22T13:53:09.716094+00:00 app[web.1]: "/packs/css/map-1c42ce8f.css"
2019-05-22T13:53:09.716096+00:00 app[web.1]: ],
2019-05-22T13:53:09.716097+00:00 app[web.1]: "js": [
2019-05-22T13:53:09.716098+00:00 app[web.1]: "/packs/js/map-c76722abf103111664a2.js"
2019-05-22T13:53:09.716100+00:00 app[web.1]: ],
2019-05-22T13:53:09.716101+00:00 app[web.1]: "js.map": [
2019-05-22T13:53:09.716102+00:00 app[web.1]: "/packs/js/map-c76722abf103111664a2.js.map"
2019-05-22T13:53:09.716104+00:00 app[web.1]: ]
2019-05-22T13:53:09.716105+00:00 app[web.1]: }
2019-05-22T13:53:09.716106+00:00 app[web.1]: },
2019-05-22T13:53:09.716108+00:00 app[web.1]: "map.css": "/packs/css/map-1c42ce8f.css",
2019-05-22T13:53:09.716109+00:00 app[web.1]: "map.js": "/packs/js/map-c76722abf103111664a2.js",
2019-05-22T13:53:09.716110+00:00 app[web.1]: "map.js.map": "/packs/js/map-c76722abf103111664a2.js.map"
2019-05-22T13:53:09.716112+00:00 app[web.1]: }
2019-05-22T13:53:09.716113+00:00 app[web.1]: ):
2019-05-22T13:53:09.716334+00:00 app[web.1]: F, [2019-05-22T13:53:09.716276 #4] FATAL -- : [20ca8723-7451-41e8-ab0d-df5b3e56c777] 7: <%= csrf_meta_tags %>
2019-05-22T13:53:09.716337+00:00 app[web.1]: [20ca8723-7451-41e8-ab0d-df5b3e56c777] 8: <%= action_cable_meta_tag %>
2019-05-22T13:53:09.716338+00:00 app[web.1]: [20ca8723-7451-41e8-ab0d-df5b3e56c777] 9: <%= stylesheet_link_tag 'application', media: 'all' %>
2019-05-22T13:53:09.716340+00:00 app[web.1]: [20ca8723-7451-41e8-ab0d-df5b3e56c777] 10: <%= stylesheet_pack_tag 'application', media: 'all' %>
2019-05-22T13:53:09.716341+00:00 app[web.1]: [20ca8723-7451-41e8-ab0d-df5b3e56c777] 11: <%= stylesheet_pack_tag 'map' %>
2019-05-22T13:53:09.716343+00:00 app[web.1]: [20ca8723-7451-41e8-ab0d-df5b3e56c777] 12: </head>
2019-05-22T13:53:09.716344+00:00 app[web.1]: [20ca8723-7451-41e8-ab0d-df5b3e56c777] 13: <body>
2019-05-22T13:53:09.716426+00:00 app[web.1]: F, [2019-05-22T13:53:09.716369 #4] FATAL -- : [20ca8723-7451-41e8-ab0d-df5b3e56c777]
2019-05-22T13:53:09.716517+00:00 app[web.1]: F, [2019-05-22T13:53:09.716463 #4] FATAL -- : [20ca8723-7451-41e8-ab0d-df5b3e56c777] app/views/layouts/application.html.erb:10:in `_app_views_layouts_application_html_erb___4054649697818533831_47054766793720'
2019-05-22T13:55:34.396458+00:00 heroku[web.1]: Restarting
2019-05-22T13:55:34.681019+00:00 heroku[web.1]: State changed from up to starting
2019-05-22T13:55:35.566494+00:00 heroku[web.1]: Stopping all processes with SIGTERM
2019-05-22T13:55:35.686117+00:00 heroku[web.1]: Process exited with status 143
2019-05-22T13:55:35.579278+00:00 app[web.1]: - Gracefully stopping, waiting for requests to finish
2019-05-22T13:55:35.582846+00:00 app[web.1]: === puma shutdown: 2019-05-22 13:55:35 +0000 ===
2019-05-22T13:55:35.582878+00:00 app[web.1]: - Goodbye!
2019-05-22T13:55:41.287394+00:00 heroku[web.1]: Starting process with command `bundle exec puma -C config/puma.rb`
2019-05-22T13:55:43.390424+00:00 app[web.1]: Puma starting in single mode...
2019-05-22T13:55:43.390453+00:00 app[web.1]: * Version 3.12.1 (ruby 2.5.3-p105), codename: Llamas in Pajamas
2019-05-22T13:55:43.390455+00:00 app[web.1]: * Min threads: 5, max threads: 5
2019-05-22T13:55:43.390456+00:00 app[web.1]: * Environment: production
2019-05-22T13:55:45.981837+00:00 heroku[web.1]: State changed from starting to up
2019-05-22T13:55:45.842400+00:00 app[web.1]: * Listening on tcp://0.0.0.0:21575
2019-05-22T13:55:45.842712+00:00 app[web.1]: Use Ctrl-C to stop
2019-05-22T13:56:03.019885+00:00 app[web.1]: I, [2019-05-22T13:56:03.019766 #4] INFO -- : [4f5fe5ef-ab45-4012-97be-87de88b8fdb5] Started GET "/" for 89.95.71.184 at 2019-05-22 13:56:03 +0000
2019-05-22T13:56:03.021420+00:00 app[web.1]: I, [2019-05-22T13:56:03.021348 #4] INFO -- : [4f5fe5ef-ab45-4012-97be-87de88b8fdb5] Processing by Devise::SessionsController#new as HTML
2019-05-22T13:56:03.112359+00:00 app[web.1]: I, [2019-05-22T13:56:03.112174 #4] INFO -- : [4f5fe5ef-ab45-4012-97be-87de88b8fdb5] Rendering devise/sessions/new.html.erb within layouts/application
2019-05-22T13:56:04.512197+00:00 heroku[router]: at=info method=GET path="/" host=concierge-at-sea.herokuapp.com request_id=4f5fe5ef-ab45-4012-97be-87de88b8fdb5 fwd="89.95.71.184" dyno=web.1 connect=0ms service=1496ms status=500 bytes=1827 protocol=https
2019-05-22T13:56:04.509151+00:00 app[web.1]: I, [2019-05-22T13:56:04.509056 #4] INFO -- : [4f5fe5ef-ab45-4012-97be-87de88b8fdb5] Rendered devise/shared/_links.html.erb (1.1ms)
2019-05-22T13:56:04.509685+00:00 app[web.1]: I, [2019-05-22T13:56:04.509622 #4] INFO -- : [4f5fe5ef-ab45-4012-97be-87de88b8fdb5] Rendered devise/sessions/new.html.erb within layouts/application (1397.3ms)
2019-05-22T13:56:04.511523+00:00 app[web.1]: I, [2019-05-22T13:56:04.511465 #4] INFO -- : [4f5fe5ef-ab45-4012-97be-87de88b8fdb5] Completed 500 Internal Server Error in 1490ms (ActiveRecord: 17.4ms)
2019-05-22T13:56:04.512104+00:00 app[web.1]: F, [2019-05-22T13:56:04.512053 #4] FATAL -- : [4f5fe5ef-ab45-4012-97be-87de88b8fdb5]
2019-05-22T13:56:04.512180+00:00 app[web.1]: F, [2019-05-22T13:56:04.512116 #4] FATAL -- : [4f5fe5ef-ab45-4012-97be-87de88b8fdb5] ActionView::Template::Error (Webpacker can't find application in /app/public/packs/manifest.json. Possible causes:
2019-05-22T13:56:04.512182+00:00 app[web.1]: 1. You want to set webpacker.yml value of compile to true for your environment
2019-05-22T13:56:04.512183+00:00 app[web.1]: unless you are using the `webpack -w` or the webpack-dev-server.
2019-05-22T13:56:04.512184+00:00 app[web.1]: 2. webpack has not yet re-run to reflect updates.
2019-05-22T13:56:04.512185+00:00 app[web.1]: 3. You have misconfigured Webpacker's config/webpacker.yml file.
2019-05-22T13:56:04.512186+00:00 app[web.1]: 4. Your webpack configuration is not creating a manifest.
2019-05-22T13:56:04.512188+00:00 app[web.1]: Your manifest contains:
2019-05-22T13:56:04.512189+00:00 app[web.1]: {
2019-05-22T13:56:04.512190+00:00 app[web.1]: "application.js": "/packs/js/application-b9d827093751ba55443e.js",
2019-05-22T13:56:04.512192+00:00 app[web.1]: "application.js.map": "/packs/js/application-b9d827093751ba55443e.js.map",
2019-05-22T13:56:04.512193+00:00 app[web.1]: "entrypoints": {
2019-05-22T13:56:04.512194+00:00 app[web.1]: "application": {
2019-05-22T13:56:04.512195+00:00 app[web.1]: "js": [
2019-05-22T13:56:04.512196+00:00 app[web.1]: "/packs/js/application-b9d827093751ba55443e.js"
2019-05-22T13:56:04.512197+00:00 app[web.1]: ],
2019-05-22T13:56:04.512198+00:00 app[web.1]: "js.map": [
2019-05-22T13:56:04.512199+00:00 app[web.1]: "/packs/js/application-b9d827093751ba55443e.js.map"
2019-05-22T13:56:04.512200+00:00 app[web.1]: ]
2019-05-22T13:56:04.512201+00:00 app[web.1]: },
2019-05-22T13:56:04.512202+00:00 app[web.1]: "map": {
2019-05-22T13:56:04.512203+00:00 app[web.1]: "css": [
2019-05-22T13:56:04.512204+00:00 app[web.1]: "/packs/css/map-1c42ce8f.css"
2019-05-22T13:56:04.512205+00:00 app[web.1]: ],
2019-05-22T13:56:04.512206+00:00 app[web.1]: "js": [
2019-05-22T13:56:04.512207+00:00 app[web.1]: "/packs/js/map-c76722abf103111664a2.js"
2019-05-22T13:56:04.512208+00:00 app[web.1]: ],
2019-05-22T13:56:04.512209+00:00 app[web.1]: "js.map": [
2019-05-22T13:56:04.512210+00:00 app[web.1]: "/packs/js/map-c76722abf103111664a2.js.map"
2019-05-22T13:56:04.512211+00:00 app[web.1]: ]
2019-05-22T13:56:04.512212+00:00 app[web.1]: }
2019-05-22T13:56:04.512213+00:00 app[web.1]: },
2019-05-22T13:56:04.512214+00:00 app[web.1]: "map.css": "/packs/css/map-1c42ce8f.css",
2019-05-22T13:56:04.512215+00:00 app[web.1]: "map.js": "/packs/js/map-c76722abf103111664a2.js",
2019-05-22T13:56:04.512217+00:00 app[web.1]: "map.js.map": "/packs/js/map-c76722abf103111664a2.js.map"
2019-05-22T13:56:04.512218+00:00 app[web.1]: }
2019-05-22T13:56:04.512219+00:00 app[web.1]: ):
2019-05-22T13:56:04.512299+00:00 app[web.1]: F, [2019-05-22T13:56:04.512257 #4] FATAL -- : [4f5fe5ef-ab45-4012-97be-87de88b8fdb5] 7: <%= csrf_meta_tags %>
2019-05-22T13:56:04.512300+00:00 app[web.1]: [4f5fe5ef-ab45-4012-97be-87de88b8fdb5] 8: <%= action_cable_meta_tag %>
2019-05-22T13:56:04.512301+00:00 app[web.1]: [4f5fe5ef-ab45-4012-97be-87de88b8fdb5] 9: <%= stylesheet_link_tag 'application', media: 'all' %>
2019-05-22T13:56:04.512302+00:00 app[web.1]: [4f5fe5ef-ab45-4012-97be-87de88b8fdb5] 10: <%= stylesheet_pack_tag 'application', media: 'all' %>
2019-05-22T13:56:04.512303+00:00 app[web.1]: [4f5fe5ef-ab45-4012-97be-87de88b8fdb5] 11: <%= stylesheet_pack_tag 'map' %>
2019-05-22T13:56:04.512304+00:00 app[web.1]: [4f5fe5ef-ab45-4012-97be-87de88b8fdb5] 12: </head>
2019-05-22T13:56:04.512305+00:00 app[web.1]: [4f5fe5ef-ab45-4012-97be-87de88b8fdb5] 13: <body>
2019-05-22T13:56:04.512334+00:00 app[web.1]: F, [2019-05-22T13:56:04.512299 #4] FATAL -- : [4f5fe5ef-ab45-4012-97be-87de88b8fdb5]
2019-05-22T13:56:04.512374+00:00 app[web.1]: F, [2019-05-22T13:56:04.512340 #4] FATAL -- : [4f5fe5ef-ab45-4012-97be-87de88b8fdb5] app/views/layouts/application.html.erb:10:in `_app_views_layouts_application_html_erb__246445882644024882_47273754121400'```
My routes
Rails.application.routes.draw do
devise_for :users
get '/dashboard' => 'pages#dashboard'
devise_scope :user do
root to: "devise/sessions#new"
end
authenticated :user do
root 'pages#dashboard'
end
end
My Layouts
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<title>Concierge#Sea</title>
<%= csrf_meta_tags %>
<%= action_cable_meta_tag %>
<%= stylesheet_link_tag 'application', media: 'all' %>
<%= stylesheet_pack_tag 'application', media: 'all' %>
<%= stylesheet_pack_tag 'map' %>
</head>
<body>
<%= render 'shared/flyout' %>
<%= render 'shared/navbar' %>
<%= render 'shared/flashes' %>
<%= yield %>
<%= javascript_include_tag 'application' %>
<%= javascript_pack_tag 'application' %>
<%= javascript_pack_tag 'map' %>
</body>
</html>
Thanks you if you can help me or give me any advice

From your heroku logs looks like you have issues with webpacker. As you can see here
2019-05-22T13:56:04.512104+00:00 app[web.1]: F, [2019-05-22T13:56:04.512053 #4] FATAL -- : [4f5fe5ef-ab45-4012-97be-87de88b8fdb5]
2019-05-22T13:56:04.512180+00:00 app[web.1]: F, [2019-05-22T13:56:04.512116 #4] FATAL -- : [4f5fe5ef-ab45-4012-97be-87de88b8fdb5] ActionView::Template::Error (Webpacker can't find application in /app/public/packs/manifest.json. Possible causes:
2019-05-22T13:56:04.512182+00:00 app[web.1]: 1. You want to set webpacker.yml value of compile to true for your environment
2019-05-22T13:56:04.512183+00:00 app[web.1]: unless you are using the `webpack -w` or the webpack-dev-server.
2019-05-22T13:56:04.512184+00:00 app[web.1]: 2. webpack has not yet re-run to reflect updates.
2019-05-22T13:56:04.512185+00:00 app[web.1]: 3. You have misconfigured Webpacker's config/webpacker.yml file.
2019-05-22T13:56:04.512186+00:00 app[web.1]: 4. Your webpack configuration is not creating a manifest.
Did you run webpacker:compile command on heroku?
Also based on info here https://github.com/rails/webpacker/issues/1494. There may be an issue with webpacker itself.