Troubleshooting

MetaMask Connect packages (@metamask/connect-multichain, @metamask/connect-evm, @metamask/connect-solana) work out of the box in modern browsers and Vite/Webpack-based setups without needing Node.js polyfills. The SDK handles its transport and crypto needs internally using browser-native APIs.

React Native is the exception. The React Native runtime lacks certain Web and Node.js APIs (Buffer, crypto.getRandomValues, stream, Event, CustomEvent), so polyfills and Metro configuration are required.

See the React Native Metro polyfill guide for step-by-step setup instructions and common error solutions.