React Native is a powerful framework, but dependency and version conflicts can be frustrating. If you’ve ever faced unexpected errors after installing a new package, you’re not alone! This guide will help you resolve these issues efficiently and get your app running smoothly again.

1. Identify the Conflict

First, determine what’s causing the issue. Read the error message carefully—React Native usually indicates conflicting dependencies. Run:

Also, check package.json, yarn.lock, or package-lock.json for mismatches. Running:

can clean up duplicate dependencies automatically. If conflicts persist, move on to the next steps.
Understanding Dependency Conflicts
Dependencies in a project are interconnected, meaning that updating one package might break another. Understanding how package versions work (major, minor, and patch updates) is crucial to preventing such issues. Semantic Versioning follows this structure:

• • 1.0.0 (Major update – may include breaking changes)

• • 1.1.0 (Minor update – new features, backward-compatible)

• • 1.1.1 (Patch update – bug fixes, backward-compatible)

Check the dependency tree using:

This helps visualize all installed dependencies and spot conflicts more effectively.

2. Clear Cache & Reinstall Dependencies

Outdated cache files can cause dependency errors. Clear the cache and reinstall dependencies using:

For Expo projects, also clear the Expo cache:

Why Clearing Cache Helps
When you install dependencies, package managers store copies in the cache. If an outdated or corrupt dependency exists, it can lead to unexpected errors. Clearing the cache ensures that you fetch fresh and up-to-date versions from the registry.

3. Check for Compatible Versions

Run:

This shows outdated dependencies. If a package conflicts with React Native, find a compatible version. To install a specific version:

Understanding Peer Dependencies
Peer dependencies indicate which versions of dependencies work well together. Check them in the package.json file. If mismatched, manually install a compatible version:

4. Manually Resolve Conflicts in package.json

If necessary, manually adjust conflicting dependencies in package.json:

For Yarn users, use resolutions:

Then, reinstall dependencies.

5. Use react-native doctor

React Native includes a built-in diagnostic tool. Run:

Follow the recommendations to resolve any issues.
Common Fixes Suggested by react-native doctor

• • Mismatched React versions → Update react and react-dom versions.

• • Missing dependencies → Install missing packages.

• • Incorrect SDK versions → Upgrade or downgrade to match requirements.

6. Upgrade React Native the Right Way

Upgrading React Native can introduce conflicts. Use the official upgrade helper:

Check the React Native Upgrade Helper for step-by-step upgrade guidance.

7. Fix iOS Dependency Issues

For iOS projects, ensure CocoaPods dependencies are correct:

If issues persist, manually reinstall pods:

8. Check for Breaking Changes

When upgrading packages, review release notes to identify breaking changes. Adjust your code accordingly to stay compatible with new versions.
What Are Breaking Changes?
Breaking changes occur when package updates introduce modifications that are not backward-compatible. Always check GitHub repositories, official documentation, and issue reports for compatibility concerns.

9. Seek Help from the React Native Community

If you’re stuck, check:

• • GitHub Issues

• • React Native Forums

• • Stack Overflow

• • React Native Discord

Many developers have encountered similar problems, and solutions are often readily available.

10. Consider Using a Monorepo Setup

For larger projects, a monorepo setup using Lerna or Turborepo helps manage dependencies efficiently and reduces version mismatches.
Benefits of Monorepos

• • Better Dependency Management: Shared dependencies across multiple packages.

• • Faster Builds: Improved efficiency when managing multiple libraries.

• • Scalability: Suitable for enterprise-level applications.

Final Thoughts

Dependency conflicts in React Native can be frustrating, but with these steps, you can diagnose and resolve issues quickly. Keep your dependencies updated, follow best practices, and leverage the React Native community when needed. By maintaining a clean dependency structure, you’ll improve your app’s stability and prevent future conflicts. If you’re just getting started, check out our guide on starting a React application with Visual Studio. Happy coding!