npm init react-app my-app , 얀 설치시 src폴더 등 누락

warning react-scripts > @svgr/webpack > @svgr/plugin-svgo > svgo@1.3.2: This SVGO version is no longer supported. Upgrade to v2.x.x.
warning react-scripts > workbox-webpack-plugin > workbox-build > rollup-plugin-terser@7.0.2: This package has been deprecated and is no longer maintained. Please use @rollup/plugin-terser
warning react-scripts > @svgr/webpack > @svgr/plugin-svgo > svgo > stable@0.1.8: Modern JS already guarantees Array#sort() is a stable sort, so this library is deprecated. See the compatibility table on MDN: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/sort#browser_compatibility
warning react-scripts > css-minimizer-webpack-plugin > cssnano > cssnano-preset-default > postcss-svgo > svgo > stable@0.1.8: Modern JS already guarantees Array#sort() is a stable sort, so this library is deprecated. See the compatibility table on MDN: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/sort#browser_compatibility
warning react-scripts > workbox-webpack-plugin > workbox-build > @surma/rollup-plugin-off-main-thread > magic-string > sourcemap-codec@1.4.8: Please use @jridgewell/sourcemap-codec instead
warning react-scripts > jest > @jest/core > jest-runner > jest-environment-jsdom > jsdom > w3c-hr-time@1.0.2: Use your platform's native performance.now() and performance.timeOrigin.
[2/4] 🚚  Fetching packages...
[3/4] 🔗  Linking dependencies...
warning "react-scripts > eslint-config-react-app > eslint-plugin-flowtype@8.0.3" has unmet peer dependency "@babel/plugin-syntax-flow@^7.14.5".
warning "react-scripts > eslint-config-react-app > eslint-plugin-flowtype@8.0.3" has unmet peer dependency "@babel/plugin-transform-react-jsx@^7.14.9".
warning "react-scripts > react-dev-utils > fork-ts-checker-webpack-plugin@6.5.3" has unmet peer dependency "typescript@>= 2.7".
warning "react-scripts > eslint-config-react-app > @typescript-eslint/eslint-plugin > tsutils@3.21.0" has unmet peer dependency "typescript@>=2.8.0 || >= 3.2.0-dev || >= 3.3.0-dev || >= 3.4.0-dev || >= 3.5.0-dev || >= 3.6.0-dev || >= 3.6.0-beta || >= 3.7.0-dev || >= 3.7.0-beta".

sudo create-react-app test-react  얘도 잘되요

먼저, npm이 설치되어 있는 경로를 확인해보세요. npm이 설치되어 있는 경로를 확인한 후 해당 경로로 이동한 다음, npm을 삭제하고 다시 설치합니다.

bash
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rm -rf /usr/local/bin/npm
curl -L https://www.npmjs.com/install.sh | sh
npm을 사용하는 프로젝트 디렉토리로 이동한 다음, node_modules 디렉토리와 package-lock.json 파일을 삭제합니다.

bash
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rm -rf node_modules
rm package-lock.json
npm을 사용하여 프로젝트를 다시 설치합니다.

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npm install

gpt형님이 제시한걸로 4일간 고민하던게 해결됫습다
npm init안해도 생긴오류라서요 ㅠ얀도 원래 됬는데 먹통되서...고생햇네요