This is a reference entry from React error codes. A full explanation with fixes has not been written yet.
createPortal was called on the server. Portals are not currently supported on the server. Update your program to conditionally call createPortal on the client only.
%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 2026-09-25T01:43:12.929Z.