Next.js Text content does not match server-rendered HTML.

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
35/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
next.js, react, typescript
Domain
frontend

Research direction

Reproduce the hydration warning with npx create-next-app@latest --ts using Next.js 12.3.1, React 18.2.0, and React DOM 18.2.0, then compare it with React 17. Done means identifying whether the mismatch is in this project or the Next.js/React combination and documenting a verified compatible resolution.

Written by the indexing model from the issue text.

Description

Overview

The problem occurs in the versions below.

"next": "^12.3.1"
"react": "18.2.0"
"react-dom": "18.2.0"

An easy setup for that test is to run the command below.

npx create-next-app@latest --ts

error symptom

image

Resolution

I downgraded the react version to 17 and the problem did not occur.
Something seems to be a problem between react@18 and next.js.

"react": "^17.0.2",
"react-dom": "^17.0.2",
Dominant language
TypeScript
Stars
670
Forks
55
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