npm install 안될때

혹시 아래와 같은 에러가 떴고,
node-sass의 버전을 변경해보거나,
npm install --legacy-peer-deps 로도 해결이 안되었다면

아래 글을 참고하여 node-gyp를 업데이트 해보길 바란다.
https://github.com/nodejs/node-gyp/blob/master/docs/Updating-npm-bundled-node-gyp.md

$ npm explore npm/node_modules/@npmcli/run-script -g -- npm_config_global=false npm install node-gyp@latest

나는 그걸로 해결이 되었다.
(배경 및 출처 : https://github.com/nodejs/node-gyp/issues/2752)

<에러 난 내용>

npm ERR! code 1
npm ERR! path /Users/user/Documents/git_repo/my_project/frontend/node_modules/node-sass
npm ERR! command failed
npm ERR! command sh -c node scripts/build.js
npm ERR! Building: /opt/homebrew/Cellar/node/20.5.1/bin/node /Users/user/Documents/git_repo/my_project/frontend/node_modules/node-gyp/bin/node-gyp.js rebuild --verbose --libsass_ext= --libsass_cflags= --libsass_ldflags= --libsass_library=
npm ERR! gyp info it worked if it ends with ok
npm ERR! gyp verb cli [
npm ERR! gyp verb cli   '/opt/homebrew/Cellar/node/20.5.1/bin/node',
npm ERR! gyp verb cli   '/Users/user/Documents/git_repo/my_project/frontend/node_modules/node-gyp/bin/node-gyp.js',
npm ERR! gyp verb cli   'rebuild',
npm ERR! gyp verb cli   '--verbose',
npm ERR! gyp verb cli   '--libsass_ext=',
npm ERR! gyp verb cli   '--libsass_cflags=',
npm ERR! gyp verb cli   '--libsass_ldflags=',
npm ERR! gyp verb cli   '--libsass_library='
npm ERR! gyp verb cli ]
npm ERR! gyp info using node-gyp@7.1.2
npm ERR! gyp info using node@20.5.1 | darwin | arm64
npm ERR! gyp verb command rebuild []
npm ERR! gyp verb command clean []
npm ERR! gyp verb clean removing "build" directory
npm ERR! gyp verb command configure []
npm ERR! gyp verb find Python Python is not set from command line or npm configuration
npm ERR! gyp verb find Python Python is not set from environment variable PYTHON
npm ERR! gyp verb find Python checking if "python3" can be used
npm ERR! gyp verb find Python - executing "python3" to get executable path
npm ERR! gyp verb find Python - executable path is "/Library/Developer/CommandLineTools/usr/bin/python3"
npm ERR! gyp verb find Python - executing "/Library/Developer/CommandLineTools/usr/bin/python3" to get version
npm ERR! gyp verb find Python - version is "3.9.6"
npm ERR! gyp info find Python using Python version 3.9.6 found at "/Library/Developer/CommandLineTools/usr/bin/python3"
npm ERR! gyp verb get node dir no --target version specified, falling back to host node version: 20.5.1
npm ERR! gyp verb command install [ '20.5.1' ]
npm ERR! gyp verb install input version string "20.5.1"
npm ERR! gyp verb install installing version: 20.5.1
npm ERR! gyp verb install --ensure was passed, so won't reinstall if already installed
npm ERR! gyp verb install version is already installed, need to check "installVersion"
npm ERR! gyp verb got "installVersion" 9
npm ERR! gyp verb needs "installVersion" 9
npm ERR! gyp verb install version is good
npm ERR! gyp verb get node dir target node version installed: 20.5.1
npm ERR! gyp verb build dir attempting to create "build" dir: /Users/user/Documents/git_repo/my_project/frontend/node_modules/node-sass/build
npm ERR! gyp verb build dir "build" dir needed to be created? /Users/user/Documents/git_repo/my_project/frontend/node_modules/node-sass/build
npm ERR! gyp verb build/config.gypi creating config file
npm ERR! gyp ERR! UNCAUGHT EXCEPTION 
npm ERR! gyp ERR! stack TypeError: Cannot assign to read only property 'cflags' of object '#<Object>'
npm ERR! gyp ERR! stack     at createConfigFile (/Users/user/Documents/git_repo/my_project/frontend/node_modules/node-gyp/lib/configure.js:117:21)
npm ERR! gyp ERR! stack     at /Users/user/Documents/git_repo/my_project/frontend/node_modules/node-gyp/lib/configure.js:84:9
npm ERR! gyp ERR! stack     at FSReqCallback.oncomplete (node:fs:190:23)
npm ERR! gyp ERR! System Darwin 22.3.0
npm ERR! gyp ERR! command "/opt/homebrew/Cellar/node/20.5.1/bin/node" "/Users/user/Documents/git_repo/my_project/frontend/node_modules/node-gyp/bin/node-gyp.js" "rebuild" "--verbose" "--libsass_ext=" "--libsass_cflags=" "--libsass_ldflags=" "--libsass_library="
npm ERR! gyp ERR! cwd /Users/user/Documents/git_repo/my_project/frontend/node_modules/node-sass
npm ERR! gyp ERR! node -v v20.5.1
npm ERR! gyp ERR! node-gyp -v v7.1.2
npm ERR! gyp ERR! Node-gyp failed to build your package.
npm ERR! gyp ERR! Try to update npm and/or node-gyp and if it does not help file an issue with the package author.
npm ERR! Build failed with error code: 7