Coding⏱️ 2 min read📅 2026-05-31

How to Fix: React eslint error missing in props validation

ESLint error for missing prop validation in React component.

Quick Answer: Ensure that the propTypes object is properly defined and exported in the component file.

React eslint error 'missing in props validation' occurs when you are using prop-types in your React components, but ESLint doesn't recognize it. This can be caused by a typo or incorrect usage of the PropTypes library.

💡 Why You Are Getting This Error

  • [Cause]

✅ Best Solutions to Fix It

Method 1: Using a Linter Configuration File

  1. Step 1: Create a new file named `.eslintrc.json` in the root of your project with the following configuration:

Method 2: Using a Linter Configuration File

  1. Step 1: Update your `index.js` file to import and use the PropTypes library correctly.

💡 Conclusion

By following these steps, you should be able to fix the React eslint error 'missing in props validation' and ensure that your components are properly validated.

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