ByteFE

Apr 27, 2021 · Frontend Development

Debugging React #31 Minified Error on Android Vivo X7: Symbol Polyfill and Build‑Order Issues

A React component that works locally threw a minified "#31" error only on Vivo X7 Android 5.1 devices because a Symbol polyfill loaded after React caused a mismatch in REACT_ELEMENT_TYPE, and adjusting the build order or JSX runtime resolved the illegal return‑value bug.