We want to hear from you!Take our 2021 Community Survey!
This site is no longer updated.Go to react.dev

Error Decoder

In the minified production build of React, we avoid sending down full error messages in order to reduce the number of bytes sent over the wire.

We highly recommend using the development build locally when debugging your app since it tracks additional debug info and provides helpful warnings about potential problems in your apps, but if you encounter an exception while using the production build, this page will reassemble the original text of the error.

When you encounter an error, you'll receive a link to this page for that specific error and we'll show you the full error text.