installing node dependencies manually - npm

Question

As I've learned from SO topics dependencies for node aren't installed automatically on the fly since npm version 3. I'm running version 3.5.2 and I get these warnings when running npm install --no-optional:
npm WARN eslint-config-react-app#5.0.2 requires a peer of #typescript-eslint/eslint-plugin#2.x but none was installed.
npm WARN eslint-config-react-app#5.0.2 requires a peer of #typescript-eslint/parser#2.x but none was installed.
npm WARN eslint-config-react-app#5.0.2 requires a peer of eslint#6.x but none was installed.
npm WARN ts-pnp#1.1.2 requires a peer of typescript#* but none was installed.
npm WARN tsutils#3.17.1 requires a peer of typescript#>=2.8.0 || >= 3.2.0-dev
npm ERR! Missing: react-router-dom#^5.1.2
npm ERR! Invalid: lock file's #typescript-eslint/eslint-plugin#1.13.0 does not satisfy #typescript-eslint/eslint-plugin#2.8.0
npm ERR!
How do I install these manually ?
I tried:
npm install #typescript-eslint/eslint-plugin#2.*
npm install eslint#6.*
npm install typescript#*
but that did no good. Still throws those warnings.
I got little bit further:
npm ERR! code ETARGET
npm ERR! notarget No matching version found for #typescript-eslint/eslint-plugin#^5.16.0.
npm ERR! notarget In most cases you or one of your dependencies are requesting
npm ERR! notarget a package version that doesn't exist.
npm ERR! notarget
npm ERR! notarget It was specified as a dependency of 'client'
npm ERR! notarget
npm ERR! A complete log of this run can be found in:
npm ERR! /home/mark/.npm/_logs/2019-10-04T20_26_24_111Z-debug.log

Answer 1

Please use the following for each peer dependency to install that and remove the error.
$ npm install --save-dev #typescript-eslint
For another error,
No matching version found for #typescript-eslint/eslint-plugin#^5.16.0.
Please run npm view #typescript-eslint/eslint-plugin.
Then, you can see that highest version of #typescript-eslint/eslint-plugin is 2.3.2 now. This #typescript-eslint/eslint-plugin#^5.16.0 version not exists.