Fix for Wrangler "write EOF" Error on Windows

README.md

Fix for Wrangler "write EOF" Error on Windows

Problem

Any project using Wrangler fails with write EOF error on Windows:

Astro with Cloudflare adapter:

pnpm astro dev
[@astrojs/cloudflare] An unhandled error occurred while running the "astro:server:setup" hook
write EOF
  Stack trace:
    at WriteWrap.onWriteComplete [as oncomplete] (node:internal/stream_base_commons:87:19)

Cloudflare Workers:

pnpm wrangler dev
X [ERROR] write EOF

Implicit Cause

Missing Visual C++ Redistributable runtime libraries required by Wrangler's native modules.

Solution

⚠️ Warning: Avoid solutions suggesting install_tools.bat from Node.js folder - it installs unnecessary tools (Python, Chocolatey, Windows SDK ~10GB+).

Install Visual C++ Redistributable instead:

Option 1: Via winget

winget install Microsoft.VCRedist.2015+.x64
winget install Microsoft.VCRedist.2015+.x86

Option 2: Direct download

• x64: https://aka.ms/vs/17/release/vc_redist.x64.exe
• x86: https://aka.ms/vs/17/release/vc_redist.x86.exe

Restart terminal and run your wrangler project again ✅

Size: ~25MB (vs ~3GB for Build Tools)

Tested on

• Windows 10/11
• Node.js 24.12.0
• Wrangler 4.55.0

Amazing, this works! Thanks.