NPM errors while installing - node.js

Question

I get the following errors while installing npm:
npm WARN worker-loader#0.8.1 requires a peer of webpack#>=0.9 <2 || ^2.1.0-beta || ^2.2.0 but none was installed.
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#1.1.2 (node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#1.1.2: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})**
Here is my package.json:
{
"private": true,
"scripts": {
"dev": "npm run development",
"development": "cross-env NODE_ENV=development node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js",
"watch": "cross-env NODE_ENV=development node_modules/webpack/bin/webpack.js --watch --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js",
"watch-poll": "npm run watch -- --watch-poll",
"hot": "cross-env NODE_ENV=development node_modules/webpack-dev-server/bin/webpack-dev-server.js --inline --hot --config=node_modules/laravel-mix/setup/webpack.config.js",
"prod": "npm run production",
"production": "cross-env NODE_ENV=production node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js"
},
"devDependencies":
{
"axios": "^0.16.2",
"bootstrap-sass": "^3.3.7",
"cross-env": "^5.0.1",
"jquery": "^3.1.1",
"laravel-mix": "^1.0",
"lodash": "^4.17.4",
"vue": "^2.1.10"
},
"dependencies": {
"latest-version": "^3.1.0",
"pdfjs-dist": "^1.9.528"
}
}
Versions: Windows 10, Node v8.4.0, Npm 5.3.0, Laravel: 4.4.

Answer 1

Firstly, these are just warnings, not errors - you've not broken anything!
That said, here's the reasoning behind them.
The first warning is telling you that worker-loader expects Webpack 2 to be installed alongside it. Laravel Mix uses Webpack 3, so you get a warning. That said, it shouldn't cause you any problems - worker-loader supports Webpack 3, they just haven't updated the peer dependency to reflect that yet.
The other warnings are very common - they're just telling you that the fsevents library, which is a Mac-only optional dependency of a lot of packages, couldn't be installed on your Windows machine.