typeError: Cannot assign to read only property 'paths' of object for compilerOptions in tsconfig

Question

**Trying to set the path inside tsconfig.json for compiler to treat src as baseUrl in react typescript project**

  {
  "compilerOptions": {
    "target": "es5",
    "baseUrl": "src",
    "paths": {
      "*": ["src/*"]
    }
    "include": [
       "src"
     ]
  }

但是报错如下：

TypeError: Cannot assign to read only property 'paths' of object '#<Object>'
    at verifyTypeScriptSetup (/Users/apple/Documents/projects/my-app/node_modules/react-scripts/scripts/utils/verifyTypeScriptSetup.js:239:43)

这是因为文件夹权限还是配置中缺少任何内容

Answer 1

显然，Create-React-App@4.0.0 中有一个 bug。

为我解决的解决方法是：

降级react-scripts:

yarn add react-scripts@3.4.4

在项目的根目录中创建一个paths.json：

{
  "compilerOptions": {
    "baseUrl": "./src",
    "paths": {
      "@Components/*": ["components/*"]
    }
  }
}

添加一个extends到tsconfig.json:

{
  "extends": "./paths.json",
  "compilerOptions": {
    "target": "es5",
    "lib": [
      "dom",
      "dom.iterable",
      "esnext"
    ],
    "allowJs": true,
    "skipLibCheck": true,
    "esModuleInterop": true,
    "allowSyntheticDefaultImports": true,
    "strict": true,
    "forceConsistentCasingInFileNames": true,
    "noFallthroughCasesInSwitch": true,
    "module": "esnext",
    "moduleResolution": "node",
    "resolveJsonModule": true,
    "isolatedModules": true,
    "noEmit": true,
    "jsx": "react"
  },
  "include": [
    "src"
  ]
}

Answer 2

根据 GitHub 问题，如果您只是删除 tsconfig.json 文件然后运行 "npm start" 它将为您重新创建 tsconfig.json 文件，一切都会工作正常。

Answer 3

我通过以下更改修复了它：

如前所述，删除您的 tsconfig 并让它自动创建默认配置也可以解决此问题。但是，如果您像我一样，您可能已经惊慌了一秒钟，因为您只能使用默认配置，解决方法会破坏绝对导入的基本路径。（不是这样 - 呸！）

具体来说，我的设置破坏了 post-upgrade 是 compileOnSave，不再需要指定。

typeError: Cannot assign to read only property 'paths' of object for compilerOptions in tsconfig

typeError: Cannot assign to read only property 'paths' of object for compilerOptions in tsconfig

reactjs

typescript

tsconfig