npm install command does not work with Laravel version 5.8 - node.js

Question

I created a Laravel 5.8 project, and I want to install npm. So I typed npm install but I get this message:
npm WARN deprecated popper.js#1.16.1: You can find the new Popper v2 at #popperjs/core, this package is dedicated to the legacy v1
npm WARN deprecated urix#0.1.0: Please see https://github.com/lydell/urix#deprecated
npm WARN deprecated chokidar#2.1.8: Chokidar 2 will break on node v14+. Upgrade to chokidar 3 with 15x less dependencies.
npm WARN deprecated fsevents#1.2.13: fsevents 1 will break on node v14+ and could be using insecure binaries. Upgrade to fsevents 2.
npm WARN deprecated resolve-url#0.2.1: https://github.com/lydell/resolve-url#deprecated
npm notice created a lockfile as package-lock.json. You should commit this file.
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#^1.2.7 (node_modules\chokidar\node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#1.2.13: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
npm WARN notsup Unsupported engine for watchpack-chokidar2#2.0.0: wanted: {"node":"<8.10.0"} (current: {"node":"12.18.3","npm":"6.14.6"})
npm WARN notsup Not compatible with your version of node/npm: watchpack-chokidar2#2.0.0
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#~2.1.2 (node_modules\watchpack\node_modules\chokidar\node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#2.1.3: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
added 1055 packages from 500 contributors and audited 1058 packages in 149.498s
37 packages are looking for funding
run `npm fund` for details
found 1 low severity vulnerability
run `npm audit fix` to fix them, or `npm audit` for details
So I saw this question related to my question, and he said run the npm install #popperjs/core --save command and after that npm uninstall popper.js --save in order to install Popper.
But as soon as I typed npm install #popperjs/core --save, I get this message:
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#1.2.13 (node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#1.2.13: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#2.1.3 (node_modules\watchpack\node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#2.1.3: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
+ #popperjs/core#2.5.2
added 1 package from 1 contributor and audited 1059 packages in 9.5s
38 packages are looking for funding
run `npm fund` for details
found 1 low severity vulnerability
run `npm audit fix` to fix them, or `npm audit` for details
So now I don't know really what should I do for installing npm, so if you know, please let me know, I would appreciate that!
Thanks in advance...
UPDATE #1:
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": "npm run development -- --watch",
"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 --no-progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js"
},
"devDependencies": {
"axios": "^0.19",
"bootstrap": "^4.1.0",
"cross-env": "^5.1",
"jquery": "^3.2",
"laravel-mix": "^4.0.7",
"lodash": "^4.17.13",
"popper.js": "^1.12",
"resolve-url-loader": "^2.3.1",
"sass": "^1.15.2",
"sass-loader": "^7.1.0",
"vue": "^2.5.17"
},
"dependencies": {
"#popperjs/core": "^2.5.2"
}
}
UPDATE 2:
I removed "popper.js": "^1.12", at package.json and node_modules folder and typed npm install but again I get the same error!

Answer 1

Remove "popper.js": "^1.12", line from package.json
then remove node_modules
then run cmd npm install