每当我在 react 上运行 npm start 时，它都会出错。 下图

Question

enter image description here image of the error message am getting

2 : Tried yarn start getting same error message [3]: Tried npm install react-scripts [4]: The second image is after i tried cd real_app and trying the link on the error message

Answer 1

You are in the wrong directory. Looking at you file structure I can see that you are trying to start the app inside of:

C:\Users\HP\Desktop\Python Worx\react\app

However as the error denotes it cannot find the package.json file. That is because your project path (where package.json is located) is actually:

C:\Users\HP\Desktop\Python Worx\react\app\real_app

In your terminal there type:

cd real_app

Then run your npm start.

Answer 2

It seems to me that you are trying to run npm start in the wrong directory. You are running the command in a directory called /app , and in the navigator pane to the left it shows that package.json is in a directory called real_app .

You need to run those npm commands in the root directory of your app, where package.json is.

To find the correct directory you can right click real_app on the left pane and select Open in Terminal , and try to run the npm command from there.

Hope that helps!

Answer 3

I had many react files in that particular folder, had to find the real_app and did the npm start there and it worked. Had to delete all other react files that i wasnt working with, guess the npm start was looking for the instance of the first react app I downloaded and that was why I was getting the error message. Thanks to @Sammy I. and @basic for your help, without you guys would not have gotten this solved. enter image description here