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Next.js errors and fixes: 2 guides

Real Next.js failures, each with the error you'll see, the cause and steps that worked. 0 of 2 fixed upstream. Search within Next.js.

Unverified: 2

Next.jsUnverified
next analyze export fails with ENOENT on an icon route using generateImageMetadata
next analyze export --snapshot before exits with code 1: Error: ENOENT: no such file or directory, open '.next/diagnostics/analyze/history/snapshot-before/icon/[__metadata_id__]/analyze.data'.
Last checked Oct 19, 2026#setup#error-messages2 steps →
Next.jsUnverified
Turbopack builds fail for edge route handlers when cacheHandlers is set
A Turbopack production or dev build of an App Router route handler with export const runtime = 'edge' fails when cacheHandlers is configured. The pull request names edge-app-route.js: Expected ';', '}' or <eof>. next build --webpack of the same app succeeds.
Last checked Oct 19, 2026#setup#error-messages2 steps →

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