Turbopack Error: Unable to watch /home/zeus/Documents/Projects/test/cms/node_modules/.pnpm/next@16.2.1_@babel+core@7.29.0_@playwright+test@1.58.2_react-dom@19.2.4_react@19.2.4__react@19.2.4_sass@1.77.

[Blaze380]

Turbopack version: 600cd2fe
Next.js version: 0.0.0

Error message:

Unable to watch /home/zeus/Documents/Projects/test/cms/node_modules/.pnpm/next@16.2.1_@babel+core@7.29.0_@playwright+test@1.58.2_react-dom@19.2.4_react@19.2.4__react@19.2.4_sass@1.77.4/node_modules/next/dist/server/dev

Caused by:
- OS file watch limit reached. about ["/home/zeus/Documents/Projects/test/cms/node_modules/.pnpm/next@16.2.1_@babel+core@7.29.0_@playwright+test@1.58.2_react-dom@19.2.4_react@19.2.4__react@19.2.4_sass@1.77.4/node_modules/next/dist/server/dev"]

Debug info:
- Execution of get_written_endpoint_with_issues_operation failed
- Execution of PlainIssue::from_issue failed
- Execution of PlainSource::from_source failed
- Execution of <FileSource as Asset>::content failed
- Execution of <DiskFileSystem as FileSystem>::read failed
- Unable to watch /home/zeus/Documents/Projects/test/cms/node_modules/.pnpm/next@16.2.1_@babel+core@7.29.0_@playwright+test@1.58.2_react-dom@19.2.4_react@19.2.4__react@19.2.4_sass@1.77.4/node_modules/next/dist/server/dev
- OS file watch limit reached. about ["/home/zeus/Documents/Projects/test/cms/node_modules/.pnpm/next@16.2.1_@babel+core@7.29.0_@playwright+test@1.58.2_react-dom@19.2.4_react@19.2.4__react@19.2.4_sass@1.77.4/node_modules/next/dist/server/dev"]

[prat555]

Hey! This usually happens when your system hits the file watcher limit (pretty common on Linux with Next.js + Turbopack).

Basically, Next.js is trying to watch a lot of files (especially inside node_modules), and your OS is blocking it.

Quick fix

Run these commands:

sudo sysctl fs.inotify.max_user_watches=524288
sudo sysctl fs.inotify.max_user_instances=512

If that fixes it, you can make it permanent with:

echo "fs.inotify.max_user_watches=524288" | sudo tee -a /etc/sysctl.conf
echo "fs.inotify.max_user_instances=512" | sudo tee -a /etc/sysctl.conf
sudo sysctl -p

Then restart your dev server:

pnpm dev

Why this happens

Linux has a limit on how many files can be watched at once, and tools like Next.js (especially with Turbopack) can easily exceed that limit.

---

If it still doesn’t work, try deleting the .next folder and restarting.
Let me know if this helps 👍