Let's implement a clean and user-friendly fallback UI for error handling. This UI should match your dApp's design system and provide clear feedback to users when something goes wrong. ```tsx // src/components/FallbackUI.tsx import React from 'react'; interface FallbackUIProps { error: string; } const FallbackUI: React.FC = ({ error }) => { return (

Something Went Wrong

{error}

); }; export default FallbackUI; ``` This fallback UI: 1. Shows a centered error message with an icon 2. Includes a refresh button to try again 3. Uses your dApp's color scheme (blue for actions, red for errors) 4. Maintains the same typography and spacing as your design system 5. Is responsive and works well on both desktop and mobile The error message will be passed from the error boundary component, making it contextually relevant to what went wrong. Next, you'll need to wrap this UI in your error boundary component. After implementing this, test it by: 1. Intentionally causing errors (e.g., invalid API calls) 2. Checking the error display 3. Verifying the refresh button works For further reading: - [React Error Boundaries Documentation](https://react.dev/reference/react/18/umd/react.development.js/Component/componendCatch) - [Tailwind CSS Error Boundary Styling Examples](https://tailwindcss.com/components/alerts)