我在尝试着create-react-app使用 typescript，但 JSX 和 TS 似乎有问题。我读了一些可能的解决方案，但对我来说并不奏效。
I have:
- npm：版本 16.14.7
- 节点：版本14.8.0
I used npx create-react-app my-app --template typescript来自docs https://create-react-app.dev/docs/adding-typescript/#installation
安装很顺利，但是当我尝试运行时npm start它给了我这个错误：
> [email protected] /cdn-cgi/l/email-protection start /Users/lukasbenediktson/Desktop/react-types/my-app
> react-scripts start
/Users/lukasbenediktson/Desktop/react-types/my-app/node_modules/react-scripts/scripts/utils/verifyTypeScriptSetup.js:239
appTsConfig.compilerOptions[option] = value;
^
TypeError: Cannot assign to read only property 'jsx' of object '#<Object>'
at verifyTypeScriptSetup (/Users/lukasbenediktson/Desktop/react-types/my-app/node_modules/react-scripts/scripts/utils/verifyTypeScriptSetup.js:239:43)
at Object.<anonymous> (/Users/lukasbenediktson/Desktop/react-types/my-app/node_modules/react-scripts/scripts/start.js:31:1)
at Module._compile (internal/modules/cjs/loader.js:1251:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1272:10)
at Module.load (internal/modules/cjs/loader.js:1100:32)
at Function.Module._load (internal/modules/cjs/loader.js:962:14)
at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:72:12)
at internal/main/run_main_module.js:17:47
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] /cdn-cgi/l/email-protection start: `react-scripts start`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] /cdn-cgi/l/email-protection start script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
我试图改变这一行 238node_modules/react-scripts/scripts/utils/verifyTypeScriptSetup.js as tudor07 在这里建议 https://github.com/facebook/create-react-app/issues/9868#issuecomment-723576740:
} else if (parsedCompilerOptions[option] !== valueToCheck) {
to
} else if (parsedCompilerOptions[option] !== valueToCheck && option !== "jsx") {
这让我可以奔跑npm start服务器已启动并正在运行。但现在显示它无法识别 JSX/TSX：
TypeScript error in /Users/lukasbenediktson/Desktop/react-types/my-app/src/App.tsx(7,5):
Could not find a declaration file for module 'react/jsx-runtime'. '/Users/lukasbenediktson/Desktop/react-types/my-app/node_modules/react/jsx-runtime.js' implicitly has an 'any' type.
If the 'react' package actually exposes this module, consider sending a pull request to amend 'https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/react` TS7016
5 | function App() {
6 | return (
> 7 | <div className="App">
| ^
8 | <header className="App-header">
9 | <img src={logo} className="App-logo" alt="logo" />
10 | <p>
My package.json看起来像这样：
{
"name": "my-app",
"version": "0.1.0",
"private": true,
"dependencies": {
"@testing-library/jest-dom": "^5.11.4",
"@testing-library/react": "^11.1.0",
"@testing-library/user-event": "^12.1.10",
"react": "17.0.1",
"react-dom": "17.0.1",
"react-scripts": "4.0.0",
"typescript": "^4.0.3",
"web-vitals": "^0.2.4"
},
"devDependencies": {
"@types/jest": "^26.0.15",
"@types/node": "^12.0.0",
"@types/react": "^16.9.53",
"@types/react-dom": "^16.9.8"
},
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test",
"eject": "react-scripts eject"
},
"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"
]
}
}
感谢您的时间。
更新：解决方案（至少对我来说）
In my tsconfig.json我改变了我的"compilerOptions": from "jsx": "react-jsx" to "jsx": "react"。请注意，我仍然需要对我的文件中的第 238 行进行更改node_modules/react-scripts/scripts/utils/verifyTypeScriptSetup.js as tudor07 在这里建议 https://github.com/facebook/create-react-app/issues/9868#issuecomment-723576740
如果它太“hacky”，请告诉我
