Repository: create-react-app
Issue: Bug 
Labels: needs triage,issue: bug report

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### Describe the bug

(Write your answer here.)

### Did you try recovering your dependencies?

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  However, **they can't be used together in one project** so you need to pick one.

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    npm install -g npm@latest
    npm install

  This should fix your project.

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  Then run in your project directory:

    yarn

  This should fix your project.

  Importantly, **if you decided to use yarn, you should never run `npm install` in the project**.
  For example, yarn users should run `yarn add <library>` instead of `npm install <library>`.
  Otherwise your project will break again.

  Have you done all these steps and still see the issue?
  Please paste the output of `npm --version` and/or `yarn --version` to confirm.
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(Write your answer here.)

### Which terms did you search for in User Guide?

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  Please scan these few sections for common problems.
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  https://facebook.github.io/create-react-app/

  If you didn't find the solution, please share which words you searched for.
  This helps us improve documentation for future readers who might encounter the same problem.
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(Write your answer here if relevant.)

### Environment

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  Run the following command in your React app's folder in terminal.
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  `npx create-react-app --info`

  Paste the output of the command in the section below.
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(paste the output of the command here.)

### Steps to reproduce

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### Expected behavior

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### Actual behavior

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### Reproducible demo

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(Paste the link to an example project and exact instructions to reproduce the issue.)

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