If you're seeing the error message "Plugin 'react' was conflicted between 'package.json' and 'eslint-config-react-app'" then it's likely that you have a conflict in your project's dependencies. There are a few ways to resolve this problem:

Solution 1: Check the DIRECTORY name

Make sure the directory name is not capitalized. For example, the directory name "Reactapp/REACTAPP/React-app" will throw this error, but "reactapp/react-app" will not. Sometimes casing may cause issues.

Solution 2: downgrade to version 6.

If you're using yarn, you can downgrade to version 6.8.0 of the eslint-config-react-app package by running the following command: yarn add --dev eslint-config-react-app@6.

Solution 3: Save the package.json file

If you're using a package manager other than yarn, you can try saving your project's package.json file (ctrl + s) and running the command again.

Solution 4: Uninstall eslint-config-react-app and reinstall it.

If the above solutions don't work, you can try uninstalling eslint-config-react-app and reinstalling it: yarn remove eslint-config-react-app yarn add --dev eslint-config-react-app

Solution 5: Remove the conflict from your project's dependencies.

If you're still seeing the error, it's likely that there is a conflict in your project's dependencies. You can try removing the conflicting dependency from your package.json file and running the command again.

If you're still seeing this error after trying these steps, please file a bug report at github.com/eslint/eslint/issues. Include your project's dependencies and versions, as well as your ESLint configuration. Thanks!