Node.js 终端中“反应不存在”

Question

I got that error “react doesn't exist” when I'm trying to compile jsx using babel using this command: npx babel src/index.js --out-file=public/main.js --presets=env,react

both dependencies env and react are configured.

{"name": "React",
"version": "1.0.0",
"description": "",
"main": "index.js",
"dependencies": {
"babel-preset-env": "^1.7.0",
"babel-preset-react": "^6.24.1"
},
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"},
"keywords": [],
"author": "",
"license": "ISC"}

any ideas?

Answer 1

Do you add React?

yarn add react

or npm install react

Answer 2

maybe try add this to script in package.json

{"name": "React",
"version": "1.0.0",
"description": "",
"main": "index.js",
"dependencies": {
"babel-preset-env": "^1.7.0",
"babel-preset-react": "^6.24.1"
},
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1",
"dev": "babel src/index.js --out-file=public/main.js --presets=env,react"
},
"keywords": [],
"author": "",
"license": "ISC"}

And run command:

yarn dev

or

npm run dev