React
React.Children.only expected a single child
React.Children.only expected to receive a single React element child.
React received multiple children or a non-element value where an API explicitly expects exactly one React element child.
Error AtlasError Documentation and ResolutionObserved message
React.Children.only expected to receive a single React element child.
Why it happens
- A component passed multiple children to an API expecting exactly one element.
- A fragment, string, or null was supplied where a single React element is required.
- A wrapper component forwards children to React.Children.only without validating the shape.
How to fix it
- Pass a single React element child instead of multiple siblings.
- Wrap multiple children in a single container element if appropriate.
- Review components using React.Children.only and ensure the caller matches the contract.
Official reference
React Docs: Minified React error #143Related errors
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