React 项目运行 `yarn` 命令安装依赖的时候收到警告 `warning Workspaces can only be enabled in private projects.` 如何解决

[hsuyeung]

google 搜了一圈儿，有说是 package.json 需要设置 "private": true,，但是我用 CRA 常见的 React 项目已经自动配置了这个了，没有解决问题。

一个一个依赖删除然后运行 yarn 命令，最后确定是 npm 依赖的问题，只要安装 npm 就会有这个警告，解决办法的话需要 npm 里把 Workspaces 删除，参考 https://github.com/webpack/webpack-cli/pull/481/commits/a1a796de57a7ee2086b8352f4bb60caf50e118f0

[hsuyeung]

完整的 package.json：
```json
{
"name": "XXX",
"version": "0.1.0",
"private": true,
"dependencies": {
"@babel/core": "^7.16.0",
"@babel/plugin-syntax-flow": "^7.14.5",
"@babel/plugin-transform-react-jsx": "^7.14.9",
"@emotion/react": "^11.9.0",
"@emotion/styled": "^11.8.1",
"@pmmmwh/react-refresh-webpack-plugin": "^0.5.3",
"@svgr/webpack": "^5.5.0",
"@testing-library/dom": ">=7.21.4",
"@testing-library/jest-dom": "^5.16.4",
"@testing-library/react": "^13.1.1",
"@testing-library/user-event": "^14.1.1",
"@types/jest": "^27.4.1",
"@types/node": "^17.0.25",
"@types/react": "^18.0.5",
"@types/react-dom": "^18.0.1",
"@typescript-eslint/eslint-plugin": "^5.20.0",
"@typescript-eslint/parser": "^5.20.0",
"babel-jest": "^27.4.2",
"babel-loader": "^8.2.3",
"babel-plugin-named-asset-import": "^0.3.8",
"babel-preset-react-app": "^10.0.1",
"bfj": "^7.0.2",
"browserslist": "^4.18.1",
"camelcase": "^6.2.1",
"case-sensitive-paths-webpack-plugin": "^2.4.0",
"css-loader": "^6.5.1",
"css-minimizer-webpack-plugin": "^3.2.0",
"dotenv": "^10.0.0",
"dotenv-expand": "^5.1.0",
"eslint": "^8.3.0",
"eslint-config-alloy": "^4.5.1",
"eslint-config-react-app": "^7.0.1",
"eslint-plugin-prettier": "^4.0.0",
"eslint-plugin-react": "^7.29.4",
"eslint-plugin-react-hooks": "^4.5.0",
"eslint-webpack-plugin": "^3.1.1",
"file-loader": "^6.2.0",
"fs-extra": "^10.0.0",
"html-webpack-plugin": "^5.5.0",
"identity-obj-proxy": "^3.0.0",
"jest": "^27.4.3",
"jest-resolve": "^27.4.2",
"jest-watch-typeahead": "^1.0.0",
"less": "^4.1.2",
"less-loader": "^10.2.0",
"mini-css-extract-plugin": "^2.4.5",
"npm": "^8.8.0",
"postcss": "^8.4.4",
"postcss-flexbugs-fixes": "^5.0.2",
"postcss-loader": "^6.2.1",
"postcss-normalize": "^10.0.1",
"postcss-preset-env": "^7.0.1",
"prettier": "^2.6.2",
"prompts": "^2.4.2",
"react": "^18.0.0",
"react-app-polyfill": "^3.0.0",
"react-dev-utils": "^12.0.1",
"react-dom": "^18.0.0",
"react-refresh": "^0.11.0",
"react-router-dom": "6",
"resolve": "^1.20.0",
"resolve-url-loader": "^4.0.0",
"sass-loader": "^12.3.0",
"semver": "^7.3.5",
"source-map-loader": "^3.0.0",
"style-loader": "^3.3.1",
"tailwindcss": "^3.0.2",
"terser-webpack-plugin": "^5.2.5",
"typescript": "^4.6.3",
"web-vitals": "^2.1.4",
"webpack": "^5.64.4",
"webpack-dev-server": "^4.7.3",
"webpack-manifest-plugin": "^4.0.2",
"workbox-webpack-plugin": "^6.4.1"
},
"scripts": {
"start": "node scripts/start.js",
"build": "node scripts/build.js",
"test": "node scripts/test.js"
},
"eslintConfig": {
"extends": [
"react-app",
"react-app/jest"
]
},
"browserslist": {
"production": [
">0.2%",
"not dead",
"not op_mini all"
],
"development": [
"last 1 chrome version",
"last 1 firefox version",
"last 1 safari version"
]
},
"description": "XXXXXX",
"main": "index.tsx",
"repository": "XXXXXXXX",
"author": "XXXX",
"license": "XXX",
"jest": {
"roots": [
"<rootDir>/src"
],
"collectCoverageFrom": [
"src/**/*.{js,jsx,ts,tsx}",
"!src/**/*.d.ts"
],
"setupFiles": [
"react-app-polyfill/jsdom"
],
"setupFilesAfterEnv": [],
"testMatch": [
"<rootDir>/src/**/__tests__/**/*.{js,jsx,ts,tsx}",
"<rootDir>/src/**/*.{spec,test}.{js,jsx,ts,tsx}"
],
"testEnvironment": "jsdom",
"transform": {
"^.+\\.(js|jsx|mjs|cjs|ts|tsx)$": "<rootDir>/config/jest/babelTransform.js",
"^.+\\.css$": "<rootDir>/config/jest/cssTransform.js",
"^(?!.*\\.(js|jsx|mjs|cjs|ts|tsx|css|json)$)": "<rootDir>/config/jest/fileTransform.js"
},
"transformIgnorePatterns": [
"[/\\\\]node_modules[/\\\\].+\\.(js|jsx|mjs|cjs|ts|tsx)$",
"^.+\\.module\\.(css|sass|scss)$"
],
"modulePaths": [],
"moduleNameMapper": {
"^react-native$": "react-native-web",
"^.+\\.module\\.(css|sass|scss)$": "identity-obj-proxy"
},
"moduleFileExtensions": [
"web.js",
"js",
"web.ts",
"ts",
"web.tsx",
"tsx",
"json",
"web.jsx",
"jsx",
"node"
],
"watchPlugins": [
"jest-watch-typeahead/filename",
"jest-watch-typeahead/testname"
],
"resetMocks": true
},
"babel": {
"presets": [
"react-app"
]
}
}
```

[hsuyeung]

上 StackOverflow 上看了看也没有找着解决方案。

[hsuyeung]

控制台：
yarn install v1.22.18
[1/4] Resolving packages...
[2/4] Fetching packages...
[3/4] Linking dependencies...
warning Workspaces can only be enabled in private projects.
[4/4] Building fresh packages...