react
Missing key prop in list
Each child in a list should have a unique "key" prop
Fixes
- 1.Add a unique `key` prop to each element returned in a .map() call
- 2.Use a stable unique identifier (id) instead of array index as key
- 3.If no id exists, combine multiple fields to create a unique key
listswarningreconciliation
Related Errors
react3 fixes
React hydration mismatch
Hydration failed because.*server rendered HTML.*didn't match
- •Ensure server and client render same content
- •Use suppressHydrationWarning for dynamic content
react3 fixes
Text content hydration mismatch
Text content does not match server-rendered HTML
- •Don't use Date.now() or Math.random() in render
- •Use useEffect for client-only values
react3 fixes
use client directive error in Server Component
(useClient|use client).*server component
- •Add 'use client' at top of file
- •Move useState/useEffect to client component