Unable to install redux and datepicker using npm

Tried using the following npm command to install redux, react-datepicker, and react-router-dom.

npm i react-redux @reduxjs/toolkit  react-datepicker react-router-dom@6

I noticed package.json isn't getting updated and the following is outputted in the terminal:

up to date, audited 157 packages in 16s

22 packages are looking for funding
  run `npm fund` for details

15 high severity vulnerabilities

To address issues that do not require attention, run:
  npm audit fix

To address all issues (including breaking changes), run:
  npm audit fix --force

Run `npm audit` for details.

I tried npm set registry=https://registry.npmjs.org/ after checking Stackoverflow.

How to solve this?

Package.json

{
  "name": "client",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "@testing-library/jest-dom": "^5.17.0",
    "@testing-library/react": "^13.4.0",
    "@testing-library/user-event": "^13.5.0",
    "react": "^18.2.0",
    "react-dom": "^18.2.0",
    "react-scripts": "5.0.1",
    "web-vitals": "^2.1.4"
  },

Expecting react-datepicker, react-redux, and the others to be added here.

Solution

The packages were installed, the vulnerability warnings are just warnings though, and can generally be ignored. Run npm audit fix if you want to update/fix them.

Make sure you are in the correct directory for installing project dependencies, e.g. the project's root directory, then try running the following:

npm i -S react-redux @reduxjs/toolkit react-datepicker react-router-dom@6

This should install and update the package.json file. The -S or --save flag does this in older Node and NPM versions.