当我尝试在我的反应应用程序上使用 npm start 时，我不断收到此错误

Question

The error keeps coming up every time i use npm start. i am a complete beginner

Answer 1

Traverse to my-app folder which is inside your My App folder and then run npm start

Answer 2

Congrats on your first react app!

The npm start command looks in your package.json file for a script. It will look something like this:

'scripts': {
     'start': 'node app.js'
}

Your error is saying that your terminal can't find the package.json file at all. Make sure your terminal is in the same directory as your package.json file. If you type the ls command in your terminal it should show your package.json file. If you don't see it, you can use cd.. to move up a directory, or cd {folderName} to move down a directory. You want to be in the my-app directory. The pwd command will print the directory you're currently in.

Answer 3

You have created a my app folder inside another my app folder, and your working directory is the first folder which doesn't have a package.json file. You must change your terminal directory to inner my app folder.

Answer 4

You need to run your command from directory which contains package.json. Probably you will also need to use command nmp run start instead. By the way folders with spaces in names may cause some problems later. I would recommend to remove spaces.