This is a reference entry from React error codes. A full explanation with fixes has not been written yet.
Objects are not valid as a React child (found: %s). If you meant to render a collection of children, use an array instead.
%s is filled in by React at runtime.
- Category
- Minified React error
- Severity
- error
- Runtime
- both
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Source: React error codes. Data fetched 2026-09-25T01:43:12.925Z.