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#parcel/core: Failed to resolve 'index.html' Getting this error

My package.json file
{
"name": "aiky",
"version": "1.0.0",
"description": "Recipe application",
"default": "index.html",
"scripts": {
"start": "parcel index.html",
"build": "parcel build index.html --dist-dir ./dist"
},
"author": "Akash Kesharwani",
"license": "ISC",
"devDependencies": {
"#parcel/resolver-glob": "^2.0.0-rc.0",
"#parcel/transformer-image": "^2.0.0-rc.0",
"#parcel/transformer-sass": "^2.0.0-rc.0",
"parcel": "^2.0.0-rc.0",
"sass": "^1.26.10"
},
"dependencies": {
"core-js": "^3.6.5",
"fractional": "^1.0.0",
"regenerator-runtime": "^0.13.7"
},
"main": "index.js"
}
I can't find the solution over the internet.
Before this, I was getting this error
#parcel/core: Failed to resolve 'src/img/test-1.jpg' from './index.html'
#parcel/resolver-default: Cannot load file './src/img/test-1.jpg' in './'.
So, I installed #parcel/resolver-glob and also added .parcelrc in root with this text
{
"extends": "#parcel/config-default",
"resolvers": ["#parcel/resolver-glob"]
}

It's not very obvious from the Parcel documentation, but you will need to include the default resolvers by adding the literal string "..." to the resolvers array.
The "..." syntax can be used to extend the default resolvers. This allows you to override the resolution for certain dependencies, but fall back to the default for others. Generally, you'll want to add your custom resolvers before running the default ones.
{
"extends": "#parcel/config-default",
"resolvers": ["#parcel/resolver-glob", "..."]
^^^^^
}

"CDK deploy" doesn't start

Hi everyone I'm pretty new in AWS CDK and wanted to create a simple app (javaScript) with AWS developer guide :
https://docs.aws.amazon.com/cdk/latest/guide/hello_world.html
it seems like everything is work fine but when I'm trying to run "cdk deploy" command the deploy is not even starting and is stack in this stage:
does somebody know what I'm doing wrong or how to get the actual error?

using -vvv and --debug options will help you identify the potential issues.

For me, I had to go into my package.json file and remove the bin node. So I changed this...
{
"name": "cdk",
"version": "0.1.0",
"bin": {
"cdk": "bin/cdk.js"
},
"scripts": {
"build": "tsc && npx cdk synth",
"watch": "tsc -w",
"cdk": "cdk"
},
"devDependencies": {
"#types/node": "10.17.27",
"#types/prettier": "2.6.0",
"aws-cdk": "2.55.1",
"ts-node": "^10.9.1",
"typescript": "~3.9.7"
},
"dependencies": {
"aws-cdk-lib": "2.55.1",
"constructs": "^10.0.0",
"source-map-support": "^0.5.21"
}
}
To this...
{
"name": "cdk",
"version": "0.1.0",
"scripts": {
"build": "tsc && npx cdk synth",
"watch": "tsc -w",
"cdk": "cdk"
},
"devDependencies": {
"#types/node": "10.17.27",
"#types/prettier": "2.6.0",
"aws-cdk": "2.55.1",
"ts-node": "^10.9.1",
"typescript": "~3.9.7"
},
"dependencies": {
"aws-cdk-lib": "2.55.1",
"constructs": "^10.0.0",
"source-map-support": "^0.5.21"
}
}

How to use background-images with SCSS + Parcel.js

I'm trying to use parcel.js and SCSS to use a background-image, but getting:
Uncaught SyntaxError: Unexpected token < 7d6454d814b6ce2e1592d3937c337ef3.js:1
Or at times getting:
Cannot read property 'js' of null
Here is my scss:
.hero{
background-image: url('../../images/2ndpaper.jpg');
}
Here is my js:
import "../styles/index.scss";
import paperbg from "../images/2ndpaper.jpg";
Here is my package.json:
{
"name": "development",
"version": "1.0.0",
"description": "CB PC - Web Development",
"main": "index.js",
"scripts": {
"dev": "parcel src/index.html",
"build": "parcel build src/index.html --out-dir prod"
},
"keywords": [
"client",
"website"
],
"author": "Designs by Harp",
"license": "ISC",
"devDependencies": {
"#babel/core": "^7.2.2",
"#babel/plugin-proposal-class-properties": "^7.3.0",
"parcel-bundler": "^1.11.0"
},
"dependencies": {
"bootstrap-4-grid": "^2.4.1",
"gsap": "^2.0.2",
"jshint": "^2.10.1",
"sass": "^1.17.2"
}
}
What could be wrong?

I'd add new npm script try adding "--public-url ./" as they suggest in Parcel documentation
"build2": "parcel build src/index.html --public-url prod"

May be this is late answer but the background image with Parcel.js and SCSS needs to be used in the way
background-image: image-set(url("path/to/image"));
This worked for me...
same answer for this question Parcel JS - not wrapping background-image url in single quotes

Electron react build not launching

I'm having some issues while trying to glue together this two things.
Let me give you some context: I'm trying to build a desktop application based on a web application that I've developed in react and it's fully operative and the build process of react is done without any errors nor issues. The problem comes when I try to glue Electron + a React Built Project.
I'm having the following structure:
/ dist
/ node_modules
/ react-mobx-router
/ build
/ static
/ js
main.05ef4655.js
/ css
main.9d8efafe.css
index.html
index.js
At the index.js i have the following code that's basically the sample boilerplate code from electron demo app:
'use strict';
const electron = require('electron');
const app = electron.app;
// adds debug features like hotkeys for triggering dev tools and reload
require('electron-debug')();
// prevent window being garbage collected
let mainWindow;
function onClosed() {
// dereference the window
// for multiple windows store them in an array
mainWindow = null;
}
function createMainWindow() {
const win = new electron.BrowserWindow({
width: 1280,
height: 720,
minWidth: 1280,
minHeight: 720
});
win.loadURL(`file://${__dirname}/react-mobx-router/build/index.html`);
//win.loadURL(`http://localhost:3000`);
win.on('closed', onClosed);
return win;
}
app.on('window-all-closed', () => {
if (process.platform !== 'darwin') {
app.quit();
}
});
app.on('activate', () => {
if (!mainWindow) {
mainWindow = createMainWindow();
}
});
app.on('ready', () => {
mainWindow = createMainWindow();
});
I also have to manually change some paths at the react built index.html so it will look like:
<link href="./static/css/main.9d8efafe.css" rel="stylesheet">
instead of:
<link href="/static/css/main.9d8efafe.css" rel="stylesheet">
The second one get's the following errors:
file:///D:/static/css/main.9d8efafe.css Failed to load resource: net::ERR_FILE_NOT_FOUND
main.05ef4655.js Failed to load resource: net::ERR_FILE_NOT_FOUND
The point is that, when I launch the Electron app with yarn start (changing the paths I've told you previously) it launches without any error nor issue but only a blank screen, if I go to the files and look for them, they are correct and the code is inside, bundled and all that react-create-app stuff does.
This is the default configuration of the package.json that comes with Electron and I haven't modified:
{
"name": "app",
"productName": "App",
"version": "0.0.0",
"description": "",
"license": "MIT",
"repository": "user/repo",
"author": {
"name": "",
"email": "",
"url": ""
},
"scripts": {
"test": "xo",
"start": "electron .",
"build": "electron-packager . --out=dist --asar --overwrite --all"
},
"files": [
"index.js",
"index.html",
"index.css"
],
"keywords": [
"electron-app",
"electron"
],
"dependencies": {
"electron-debug": "^1.0.0"
},
"devDependencies": {
"devtron": "^1.1.0",
"electron-packager": "^8.0.0",
"electron": "^1.0.1",
"xo": "^0.16.0"
},
"xo": {
"esnext": true,
"envs": [
"node",
"browser"
]
}
}
Also this is the package.json of my React Project:
{
"name": "react-mobx",
"version": "0.1.0",
"private": true,
"devDependencies": {
"custom-react-scripts": "0.0.23",
"mobx-react-devtools": "^4.2.11"
},
"dependencies": {
"mobx": "^3.1.4",
"mobx-react": "^4.1.2",
"mobx-react-router": "latest",
"react": "^15.4.2",
"react-dom": "^15.4.2",
"react-router": "latest"
},
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test --env=jsdom",
"eject": "react-scripts eject"
}
}
Note that the React App is fully functional if I don't make use of Electron.
That's why I ask for your wisdom, mates. I need some light here so I can keep moving on with this project. Hope you can help me with this issue and I've provided you with enough information. If you need more info, just let me know.
Warm regards,
Alex.

I'm no React hero (by a long chalk) but I am able to run, hot reload and release build using the schema set out by this boilerplate: electron-es6-react. I added some conditional code to main.js (below) for builds. There are no doubt much better solutions.
You definitely need to merge your React package.json with Electron's.
var isDev = process.env.APP_DEV ? (process.env.APP_DEV.trim() == "true") : false;
if (isDev) {
// only add this during development
require('electron-reload')(__dirname, {
electron: path.join(__dirname, 'node_modules', '.bin', 'electron')
});
}
package.json
{
"name": "electron-es6-react",
"version": "0.1.0",
"description": "template",
"license": "MIT",
"production": false,
"version-string": {
"CompanyName": "Cool Co.",
"FileDescription": "template",
"OriginalFilename": "template",
"ProductName": "template",
"InternalName": "template"
},
"main": "main.js",
"scripts": {
"start": "APP_DEV=true electron -r babel-register .",
"package-mac": "electron-packager . --overwrite --tmpdir=false --platform=darwin --arch=x64 --prune=true --out=release-builds",
"package-win": "electron-packager . --overwrite --tmpdir=false --asar=true --platform=win32 --arch=ia32 --prune=true --out=release-builds"
},
"dependencies": {
"babel-preset-es2015": "^6.3.13",
"babel-preset-react": "^6.3.13",
"babel-register": "^6.3.13",
"fs-jetpack": "^0.12.0",
"react": "^15.3.2",
"react-dom": "^15.3.2",
"react-images": "^0.5.2"
},
"devDependencies": {
"electron": "^1.4.3",
"electron-packager": "^8.5.2",
"electron-reload": "^1.1.0"
}
}

Clean package.json before packing

Let's say you have a npm project with the following package.json:
{
"name": "XXX",
"version": "YYY",
"license": "ZZZ",
"scripts": {
"scriptA": "...",
"scriptB": "...",
"preinstall": "...",
"postinstall": "..."
},
"devDependencies": {
"depA": "vA",
"depB": "vB"
},
"dependencies": {
"depC": "vC",
"depD": "vD"
}
}
When packing/publishing your package, you don't need the scripts or devDependencies keys. But more dangerously, the preinstall and postinstall scripts could trigger weird/unwanted actions when people install your package as a dependency.
So how do you clean your package.json, ie remove the keys that you don't need?
I'm currently using npm 3.10. If I use the npm pack command, according to the npm documentation it will simply pack the current package if no arguments are provided (therefore taking the raw package.json from disk) and there is no options I can provide to clean it up.
I can of course write my own scripts that would zip the package and generate my own package.json. Is it the way to go?

I have created clean-package to do this.
The most simple usage is just three steps:
npm install clean-package --save-dev
Hook clean-package into the prepack and postpack scripts
"scripts": {
"prepack": "clean-package",
"postpack": "clean-package restore"
}
Configure clean-package as root property in your package.json
"clean-package": {
"remove": [
"script",
"devDependencies",
"preinstall",
"postinstall",
]
}
There are many more options and extended uses, so there is more information on the repo: https://github.com/roydukkey/clean-package.

Using npm itself, this does not seem possible. As of npm 3.10, npm publish or npm pack will indeed just include a pure copy of your package.json in your tgz.
The solution is therefore to generate its own packaged file to have full control over the included package.json.
Basic example
Note: this is using the shell and synchronous method from npm fs
const fs = require('fs');
const os = require('os');
const shell = require('shelljs');
const targz = require('tar.gz');
// create temp directory
const tempDirectory = fs.mkdtempSync(`${os.tmpdir()}/your-project-tarball-`);
const packageDirectory = `${tempDirectory}/package`;
// create subfolder package
fs.mkdirSync(packageDirectory);
// read existing package.json
const packageJSON = require('./package.json');
// copy all necessary files
// https://docs.npmjs.com/files/package.json#files
shell.cp('-R', packageJSON.files, packageDirectory);
shell.cp('-R', ['README.md', 'CHANGELOG.md', 'LICENSE'], packageDirectory);
// create your own package.json or modify it here
Reflect.deleteProperty(packageJSON, 'scripts');
fs.writeFileSync(`${packageDirectory}/package.json`, JSON.stringify(packageJSON, null, 2));
// create tgz and put it in dist folder
targz().compress(packageDirectory, 'your-package.tgz');
Real life example with Lodash
This is for example what the lodash lib does in version 4.17.2. Their original package.json looks like (cf https://github.com/lodash/lodash/blob/4.17.2/package.json):
{
"name": "lodash",
"version": "4.17.2",
"license": "MIT",
"private": true,
"main": "lodash.js",
"engines": { "node": ">=4.0.0" },
"scripts": {
"build": "npm run build:main && npm run build:fp",
"build:fp": "node lib/fp/build-dist.js",
"build:fp-modules": "node lib/fp/build-modules.js",
"build:main": "node lib/main/build-dist.js",
"build:main-modules": "node lib/main/build-modules.js",
"doc": "node lib/main/build-doc github && npm run test:doc",
"doc:fp": "node lib/fp/build-doc",
"doc:site": "node lib/main/build-doc site",
"doc:sitehtml": "optional-dev-dependency marky-markdown#^9.0.1 && npm run doc:site && node lib/main/build-site",
"pretest": "npm run build",
"style": "npm run style:main && npm run style:fp && npm run style:perf && npm run style:test",
"style:fp": "jscs fp/*.js lib/**/*.js",
"style:main": "jscs lodash.js",
"style:perf": "jscs perf/*.js perf/**/*.js",
"style:test": "jscs test/*.js test/**/*.js",
"test": "npm run test:main && npm run test:fp",
"test:doc": "markdown-doctest doc/*.md",
"test:fp": "node test/test-fp",
"test:main": "node test/test",
"validate": "npm run style && npm run test"
},
"devDependencies": {
"async": "^2.1.2",
"benchmark": "^2.1.2",
"chalk": "^1.1.3",
"cheerio": "^0.22.0",
"codecov.io": "~0.1.6",
"coveralls": "^2.11.15",
"curl-amd": "~0.8.12",
"docdown": "~0.7.1",
"dojo": "^1.11.2",
"ecstatic": "^2.1.0",
"fs-extra": "~1.0.0",
"glob": "^7.1.1",
"istanbul": "0.4.5",
"jquery": "^3.1.1",
"jscs": "^3.0.7",
"lodash": "4.17.1",
"lodash-doc-globals": "^0.1.1",
"markdown-doctest": "^0.9.0",
"optional-dev-dependency": "^2.0.0",
"platform": "^1.3.3",
"qunit-extras": "^3.0.0",
"qunitjs": "^2.0.1",
"request": "^2.78.0",
"requirejs": "^2.3.2",
"sauce-tunnel": "^2.5.0",
"uglify-js": "2.7.4",
"webpack": "^1.13.3"
},
"greenkeeper": {
"ignore": [
"lodash"
]
}
}
But the published package.json looks like (cf https://unpkg.com/lodash#4.17.2/package.json)
{
"name": "lodash",
"version": "4.17.2",
"description": "Lodash modular utilities.",
"keywords": "modules, stdlib, util",
"homepage": "https://lodash.com/",
"repository": "lodash/lodash",
"icon": "https://lodash.com/icon.svg",
"license": "MIT",
"main": "lodash.js",
"author": "John-David Dalton <john.david.dalton#gmail.com> (http://allyoucanleet.com/)",
"contributors": [
"John-David Dalton <john.david.dalton#gmail.com> (http://allyoucanleet.com/)",
"Mathias Bynens <mathias#qiwi.be> (https://mathiasbynens.be/)"
],
"scripts": { "test": "echo \"See https://travis-ci.org/lodash/lodash-cli for testing details.\"" }
}
where you can see the scripts and devDependencies keys for example are not there anymore. This is done using a JavaScript Template package.jst as long as a nodejs script Lodash CLI