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Development Servers errors

Browse documented development servers errors, error messages, troubleshooting explanations, and fixes across products, tools, and platforms.

These pages help users compare related error messages, common causes, and how-to-fix steps across different tools that fail in the same way.

Development Servers errors are often searched as exact messages or short problem phrases, so this hub is designed to work as both a documentation browse surface and a search landing area.

The pages in this category focus on what the error means, what usually causes it, and which checks help narrow the issue fastest across different products and platforms.

Vite
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Error: Cannot find module 'C:\foo\bar&baz\vite\bin\vite.js'
Vite cannot start because the project path contains an ampersand on WindowsVite
Cross drive links on Windows
Vite cross-drive links do not work on WindowsVite
Port 5173 is already in use
Vite dev server port already in useVite
Requests are stalled forever
Vite dev server requests are stalled foreverVite
431 Request Header Fields Too Large
Vite dev server returns 431 Request Header Fields Too LargeVite
Vite does not detect a file change
Vite does not detect file changes under WSL2Vite
Dev Containers / VS Code Port Forwarding
Vite does not work through VS Code Dev Container port forwardingVite
Error: ENOSPC: System limit for number of file watchers reached
Vite hit the Linux file watcher limitVite
Vite detects a file change but the HMR is not working
Vite HMR is not working because a file is imported with the wrong caseVite
A full reload happens instead of HMR
Vite performs a full reload instead of Hot Module ReplacementVite
Development Servers Errors | Error Atlas