Problemsby GlyphTrouble with GitHub next
20 posts from 18 people14d activeFading, +1 this week
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next build fails prerendering /_global-error with TypeError: Cannot read properties of null (reading 'useContext') (minimal repro)
**Describe the bug** `next build` fails in a minimal App Router project with no custom `global-error`, `error`, or `not-found` files. The failure happens during static prerendering of `/_global-error` (sometimes `/`), with: Running with `next build --debug-prerender` succeeds...
next dev (Turbopack): every client-side navigation stalls ~8s - repeated 307->200 requests (RSC request redirected to ?_rsc URL), then 'enqueueModel is not a function' fallback (16.4.3/16.4.4; 16.2.12 unaffected)
...stream, dev debug channel) and #92362 (enqueueModel, Flight client) - both closed for lack of reproduction; this repro produces both errors deterministically.
import.meta.glob with eager and import returns undefined in next build (16.4)
### Link to the code that reproduces this issue https://github.com/zachthedev/next-glob-import-repro ### To Reproduce `app/layout.tsx`: `app/page.tsx`: `app/items/a.ts`: `app/items/b.ts`: 1. `npm install` 2. `npm run dev`, and open `/`. 3. `npm run build && npm run start`, and...
`cookies()` throws InvariantError in `next dev` with `cacheComponents` when a Server Action form is submitted before hydration
# Link to the code that reproduces this issue https://github.com/yukinobunakamura00/next-cookies-invariant-repro # To Reproduce 1. Clone the reproduction (`npm install`). The files are also inline below (`next@16.4.3`, React 19.3.0). 2. `next dev` 3. Open `/` in a browser **with...
<!-- __NEXT_TEST_REPORT_COMMENT__ -->
## Tests Passed Commit: 79e63e79be72f457ccdd202fbe4bd9b9b60e8485 _Originally posted by @github-actions in https://github.com/vercel/next.js/pull/100965#issuecomment-6528177846_
[16.4] `next build` crashes prerendering /_global-error: Cannot read properties of null (reading 'useContext') — nondeterministic
...→ `1339301996` (stable across app-code changes) → `1259413171` (clean dist). ### Workaround `next build --experimental-build-mode compile` (all routes in this app are dynamic, so nothing is lost by skipping the generate phase). ### Environment - Windows; Next.js 16.4.1 and...
[16.4] `next build` crashes prerendering /_global-error: Cannot read properties of null (reading 'useContext') — nondeterministic
...generation is affected (`next dev` and `next start` work; all routes are dynamic) - Workaround: `--experimental-build-mode compile` builds successfully ### Provide environment information ### Which area(s) are affected? (Select all that apply) Error Handling, Metadata, Output,...
`notFound()` thrown from a dynamic segment renders an empty `<body>` (`<html id="__next_error__">`); not-found UI only in the RSC payload
### Link to the code that reproduces this issue https://github.com/molovo/next-notfound-empty-body ### To Reproduce 1. Clone the repo, then run `npm install && npm run build && npm run start`. 2. Run `curl -s http://localhost:3000/nope`. `app/[slug]/page.tsx` calls `notFound()`...
Turbopack (App Router): route react-loadable-manifest names an unemitted chunk when a layout's next/dynamic gate is also reached from the page (preload 404)
### Link to the code that reproduces this issue https://github.com/ysfsarikaya/next-turbopack-loadable-manifest-repro ### To Reproduce 1. `git clone https://github.com/ysfsarikaya/next-turbopack-loadable-manifest-repro && cd next-turbopack-loadable-manifest-repro` 2....
turbopackModuleFragments: next build fails with "ReferenceError: Cannot access '…' before initialization"
### Link to the code that reproduces this issue https://github.com/manwook-han/next-turbopack-module-fragments-tdz ### To Reproduce 1. Clone the repo 2. `pnpm install` 3. `pnpm build` The only non-default config: ### Current vs. Expected behavior **Current:** the build fails...
Turbopack: next/font/google drops the metric-adjusted fallback face when `fallback` is set (webpack emits both)
### Link to the code that reproduces this issue https://github.com/FirstReefco/next-font-turbopack-fallback-repro ### To Reproduce 1. `npm install` 2. `npm run build` (Turbopack) and inspect the CSS in `.next/static` 3. `npm run build:webpack` and inspect the CSS again...
loading.tsx Suspense boundary never resolves on the client (Next 15 and 16; works on 14)
...takes for that request, so the same route can be fine on a fast request and permanently stuck on a slow one.
[create-next-app] Next steps commands ('Inside that directory, you can run several commands:') omitted when creating app from template
### Link to the code that reproduces this issue https://github.com/vercel/next.js/blob/canary/packages/create-next-app/create-app.ts#L288 ### To Reproduce 1. Run `npx create-next-app@canary test-app --ts --app --skip-install` (or run interactive `create-next-app` with default...
[create-next-app] Next steps commands ('Inside that directory, you can run several commands:') omitted when creating app from template
### Link to the code that reproduces this issue https://github.com/ShakilUrRehman21/cna-repro ### To Reproduce 1. Run `npx create-next-app@canary test-app --ts --app --skip-install` (or run interactive `create-next-app` with default options). 2. Wait for the CLI to finish...
Next 16.4: turbopackSharedRuntime inlines the bootstrap into the prerendered shell without a nonce, breaking hydration under a nonce CSP (cacheComponents)
...next build (local), next start (local), Other (Deployed) ### Additional context Workaround in use: `experimental: { turbopackSharedRuntime: false }`, plus a build-time check that fails if any prerendered shell carries an inline script the CSP cannot allow.
Cache Components: PPR pages lose cache after `next start` restart, RSC payload stays at build-time data
### Link to the code that reproduces this issue https://github.com/QuachTrienHuy1107/next-ppr-rsc-restart-repro ### To Reproduce 1. npm install 2. ./repro.sh - builds, runs `next start`, requests the pages, restarts the server and requests them again. `PROBE_MEM=40000 ./repro.sh...
Turbopack dev: next/dynamic preloads a chunk that is never emitted (404) when the component has an import()
### Link to the code that reproduces this issue https://github.com/AdzerKI/next-dynamic-async-import-repro ### To Reproduce 1. `npm install` 2. `npm run dev` 3. In a second terminal: `npm run check` - it loads `/` (App Router) and `/legacy` (Pages Router) and requests every...
We tested our open-source NAR TTS on Seed-TTS - what should we test next?
...inputs.. We’d like to build a more practical test set around the cases people actually struggle with.. If you use local TTS, what would you test next?. Some examples:. mixed Chinese and English. names and obscure place names. numbers, acronyms and CLI commands. tongue twisters....
@next/codemod upgrade pins ESLint to 10 unprompted, failing install for projects using eslint-plugin-import
### Link to the code that reproduces this issue https://github.com/Jean-Marc18/next-codemod-eslint10-repro ### To Reproduce The repo is a stock `create-next-app@15.5.0` project (TypeScript, ESLint, App Router) with one extra dev dependency: `eslint-plugin-import@2.32.0`. ###...
Next Image component fails when a relative src redirects to an external image
### Link to the code that reproduces this issue https://github.com/charlottelong-figma/next-image-redirect-repro ### To Reproduce 1. Clone the repo 2. Run `npm ci && npm run dev` 3. Open http://localhost:3000 (or whichever port the project is running on) 4. You can see that the...
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About this problem
Evidence
20 posts from 18 people in 2 places, about 2 a week over 63 days. Mostly on vercel/next.js, r/LocalLLaMA. Tools named alongside: Vercel, npm, Observe, Cloudflare.
Frustration Frustration 1 of 3· Seen on GitHub issues, Reddit
How it was grouped
Posts about GitHub with no known issue, sharing the word "next". First post Sep 3, 2026, latest Nov 4, 2026. Corroborated: 3 or more posts from 2 or more people or places. Method
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