Unstable pnpm dev/yarn dev/npm dev
Hello there!
I just upgraded from Nuxt 3 to Nuxt 4.1.2, now when running the
dev command, the application resets randomly (it seems), I can see at the start that there are some dependency optimization, but after a while it just stops working or reloads the page entirely.
Looking at the logs, a lot of errors occur, most are:
- Fetch handler error: Cannot pipe to a closed or destroyed stream
- Fetch handler error: aborted
- Fetch handler error: Premature close
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The project normally uses pnpm, but I've tried changing to npm and yarn and the same problems occur. On nuxt 3.8 it was working fine.
Other dependencies have changed as well, such as Primevue and Tailwindcss.
I wish to understand and fix this problem, it is becoming a real problem and its slowing development for the entire team. The application in production works fine, nothing wrong.
SSR is false9 Replies
Hi @bergamota. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:
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Based on the information in the knowledge sources, instability and random resets during local development after upgrading to Nuxt 4.1.2 have been reported by other users as well. Common symptoms include the dev server restarting with messages like:
and errors such as:
- Fetch handler error: Cannot pipe to a closed or destroyed stream
- Fetch handler error: aborted
- Fetch handler error: Premature close
These issues seem to be more prevalent after upgrading from Nuxt 3 to Nuxt 4, and are not specific to a particular package manager (pnpm, npm, yarn). Some users have also reported that the dev server can become unresponsive and require a manual restart. The problem appears to be related to the development environment, as production builds are unaffected.
Potential Causes and Workarounds:
1. File Watching and .nuxt/dist Directory Issues:
There are reports that Nuxt 4 can randomly detect the
".nuxt/dist directory has been removed. Restarting Nuxt.." 2. SSR Disabled (SSR: false):
While your project is running in SPA mode (SSR: false), these issues still occur, which matches reports from other users. There is no indication that SSR mode specifically affects this instability. 3. Dependency Conflicts or Incompatibilities:
Some users have found that certain dependencies or their versions (e.g., PrimeVue, TailwindCSS) can contribute to instability, especially after major upgrades. However, the knowledge sources do not provide a specific dependency to blame. 4. Workarounds:
- Try deleting
The instability you are experiencing with
.nuxt/dist directory has been removed. Restarting Nuxt.. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------
There are reports that Nuxt 4 can randomly detect the
.nuxt/dist directory as removed, causing a restart. This can happen every 20–30 minutes and sometimes leaves the server in an unresponsive state. The root cause is not clearly identified in the knowledge sources, but it is a known issue after upgrading to Nuxt 4.1.x. No definitive fix is provided, but awareness of this behavior is important if you see similar logs in your terminal.".nuxt/dist directory has been removed. Restarting Nuxt.." 2. SSR Disabled (SSR: false):
While your project is running in SPA mode (SSR: false), these issues still occur, which matches reports from other users. There is no indication that SSR mode specifically affects this instability. 3. Dependency Conflicts or Incompatibilities:
Some users have found that certain dependencies or their versions (e.g., PrimeVue, TailwindCSS) can contribute to instability, especially after major upgrades. However, the knowledge sources do not provide a specific dependency to blame. 4. Workarounds:
- Try deleting
node_modules and your lockfile (pnpm-lock.yaml, package-lock.json, or yarn.lock), then reinstall dependencies and restart the dev server.
- If you see issues related to the .nuxt/dist directory or unexplained restarts, be aware that this is a known issue and may not have a direct fix yet.
- If you are using Deno, running nuxt dev --no-fork has been reported to help in some cases, but this is not directly related to your Node.js setup.
- Monitor for updates to Nuxt and its CLI, as some issues have been fixed in later releases or by rolling back/upgrading specific packages.
Summary:The instability you are experiencing with
pnpm dev, yarn dev, or npm dev after upgrading to Nuxt 4.1.2 is a known issue, particularly with random restarts and fetch handler errors. The knowledge sources do not provide a definitive fix, but suggest that it is related to the Nuxt 4 upgrade and possibly file watching or dependency issues. Regularly check for updates and consider reporting your specific case with a minimal reproduction if the problem persists, as this helps the Nuxt team address such issues more effectively.
If you have logs mentioning the .nuxt/dist directory or unexplained restarts, you are not alone—this is a recognized problem in the community after upgrading to Nuxt 4.1.x, and the Nuxt team is aware of it..nuxt/dist directory has been removed. Restarting Nuxt.. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------
<@515664341194768385> Kapa.ai is still learning and improving, please let me know how I did by reacting below.
Hi, Can you share the proejct so that I can have a look?
I have worked with Nuxt for more than 2 years.
Unfortunately the project is private and owned by the company. I can't provide the project itself. What I can do is provide package.json, something from nuxt config and so on...
I see
understood your concern
The error persists troughout 4 different devs, with 4 different node and pnpm/yarn versions
2 devs are using yarn and the other 2 are using pnpm, the error appears on all of them...
maybe the team members should be using the same tool
I think pnpm is a better option
I had the same issue running my old project with pnpm
Hello! I'm also on the team, and we were using the same tools, so we started testing on different tools and versions to see if it would change anything but no luck with it. Yarn seems to be more stable, with less errors and random reloads. However some problems seem to be related to the Nuxt CLI, others to Vite, but changing from pnpm to yarn fixed some, so i'm not sure atm
Hi, Maffi, It might be worth standardizing the team on the same package manager and Nuxt CLI version to prevent environment conflit.
Maybe you should rely on Yarn + specific Nuxt/Vite versions and lock dependencies in a shared package-lock or yarn.lock to keep things stable across everyone’s builds.