> nextjs_troubleshooting
nextjs
Next.js App Router + build + runtime errors.
8 errors·category: framework·updated june 2026
#codeproblemseveritypopularity
- 01Module not found: Can't resolveModule not foundblocker95
- 02Hydration failedHydration failed — server/client HTML mismatchworkaround86
- 03ServerComponentErrorServerComponentError — client API used in Server Componentcan-fix85
- 04DynamicServerErrorDynamicServerError — route uses dynamic APIs in static contextcan-fix82
- 05Error occurred prerendering pageStatic generation failedblocker80
- 06ImageOptimizationErrorImageOptimizationError — next/image cannot optimize the sourcecan-fix76
- 07NEXT_NOT_FOUNDNEXT_NOT_FOUND — notFound() or missing not-found.tsx boundarycan-fix74
- 08MiddlewareErrorMiddlewareError — middleware compilation or runtime failurecan-fix72
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- · Cross-referenced with the official nextjs docs and GitHub issues.
- · Fixes verified against top-voted Stack Overflow answers and high-reaction GitHub comments.
- · Reviewed and refreshed as new nextjs versions ship and reader corrections come in.
- · No paid placements. No third-party affiliate links. Monetisation: AdSense plus occasional links to the editor’s own paid digital products (clearly labelled).
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