unable to correctly install parcel using npm - npm

Question

I'm using the command 'npm -g install parcel-bundler', to install parcel globally and get no error, but then it doesn't seem to be installed.
When i run the command 'parcel --version' i get 'command not found', same for any other 'parcel' commands. I've tried running the 'install' command again and I get a 'parcel-bundler#1.12.4
updated 2 packages in 20.003s'. i have several 'deprecated' warnings, could the problem come from that ?
here they are :
npm WARN deprecated core-js#2.6.12: core-js#<3 is no longer maintained and not recommended for usage due to the number of issues. Please, upgrade your dependencies to the actual version of core-js#3.
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 WARN deprecated urix#0.1.0: Please see https://github.com/lydell/urix#deprecated
npm WARN deprecated request#2.88.2: request has been deprecated, see https://github.com/request/request/issues/3142
npm WARN deprecated request-promise-native#1.0.9: request-promise-native has been deprecated because it extends the now deprecated request package, see https://github.com/request/request/issues/3142
npm WARN deprecated har-validator#5.1.5: this library is no longer supported
/Users/user.npm-packages/bin/parcel -> /Users/user/.npm-packages/lib/node_modules/parcel-bundler/bin/cli.js
Thanks
EDIT : I have tried updating all the deprecated items manually and re-installing Parcel, it didin't fix the problem.

Answer 1

Recently I encountered the same problem and while I don't fully understand why this happens, I manage to find some workarounds to run parcel:
After installation using npm, run the same commands but adding npx before them, for example, I create a server through npx parcel index.html;
Install it using yarn (yarn add parcel-bundler) and then, for example, run a server (yarn parcel index.html). Same deprecated warnings here but they don't prevent the package from running;
Update: if install the package locally there are even more ways.
You can do what npx does under the hood: ./node_modules/.bin/parcel --version;
Create custom shorthand command in package.json. Under scripts object add "server": "parcel index.html". The part before colon can be named anything you like. After that run npm run server and this would work.