Kindly make sure that the package.json file contains a valid "main" entry

Just added Bootstrap to my React project using npm. Imported Bootstrap with the following code:

import 'bootstrap/dist/css/bootstrap.min.css';

However, I encountered an error that says:

Cannot find module 'D:\project\my-app\node_modules\schema-utils\src\index.js'. Please check if the package.json file has a correct "main" entry.

Answer №1

One solution is to remove the package-lock.json file and execute the command npm install

Make sure to check your package.json for an entry related to main, typically it will look like

"main": "dist/cjs"

Answer №2

In order to resolve the issue, I had to remove both my package-lock.json file and the node_modules directory. After doing so, I ran the command npm i. This fix was specifically for a problem in my react application.

Answer №3

For a quick fix, consider utilizing the command "npm update --force". It worked like a charm for me!

Answer №4

For those utilizing yarn, consider removing the yarn.lock file and re-running the yarn command.

Answer №5

Encountered a similar issue on our Jenkins server. Resolved it by executing the job once with the command yarn cache clean. Once the job finished, we deleted that line and all was well again.

Answer №6

Executing the command npm ci could provide a quicker resolution.

Answer №7

Instead of attempting to fix the issue by deleting `package-lock.json` and running `npm install`, I took a different approach. I decided to delete my project entirely and start fresh by creating a new one with the command `npx create-react-app my-react-activities`.

After the new project was set up, I navigated into its directory using `cd` and then executed `npm start`.

Surprisingly, this method worked without any issues. Although I cannot explain why it worked, I am satisfied with the outcome. If anyone can provide an explanation for this phenomenon, I would love to hear it.

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