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ERROR Failed to initialize wrangler bindings proxy spawn EBADF #55
Description
I really, truly, wish I could reproduce this for you, but I figured it would at least help to drop this issue here as a marker. This issue seems to pop up entirely randomly.
Here is the stack trace:
ERROR Failed to initialize wrangler bindings proxy spawn EBADF
at ChildProcess.spawn (node:internal/child_process:421:11)
at Object.spawn (node:child_process:761:9)
at Runtime.updateConfig (node_modules/.pnpm/miniflare@3.20250310.0/node_modules/miniflare/dist/src/index.js:10115:57)
at async #assembleAndUpdateConfig (node_modules/.pnpm/miniflare@3.20250310.0/node_modules/miniflare/dist/src/index.js:15339:30)
at async Mutex.runWith (node_modules/.pnpm/miniflare@3.20250310.0/node_modules/miniflare/dist/src/index.js:1725:16)
at async #waitForReady (node_modules/.pnpm/miniflare@3.20250310.0/node_modules/miniflare/dist/src/index.js:15403:5)
at async Miniflare2._getProxyClient (node_modules/.pnpm/miniflare@3.20250310.0/node_modules/miniflare/dist/src/index.js:15527:5)
at async Miniflare2.getBindings (node_modules/.pnpm/miniflare@3.20250310.0/node_modules/miniflare/dist/src/index.js:15546:25)
at async getPlatformProxy (node_modules/.pnpm/wrangler@3.114.1_@cloudflare+workers-types@4.20250311.0/node_modules/wrangler/wrangler-dist/cli.js:158007:20)
at async _getPlatformProxy (.nuxt/dev/index.mjs:5326:17)
This may be a miniflare issue too, although it doesnt look like that repo gets a lot of love. The specific spawn that is being attempted is workerd with the following arguments:
[
'serve',
'--binary',
'--experimental',
'--socket-addr=entry=127.0.0.1:0',
'--external-addr=loopback=127.0.0.1:64989',
'--control-fd=3',
'-'
]
I cannot reliably get this to go away once it starts. I pnpm install, delete node modules, nuxi cleanup — none of that works, but then all of a sudden it does start working. I have no idea to be honest.
Environment
- Operating System:
Darwin - Node Version:
v20.11.0 - Nuxt Version:
3.16.0 - CLI Version:
3.22.5 - Nitro Version:
2.11.6 - Package Manager:
pnpm@8.15.4 - Builder:
- - User Config:
app,compatibilityDate,modules,runtimeConfig,turnstile,css,postcss,imports,devtools,nitro - Runtime Modules:
nitro-cloudflare-dev@0.2.2,@nuxt/icon@1.10.3,@nuxtjs/turnstile@0.9.15,@pinia/nuxt@0.9.0 - Build Modules:
-
Activity
justin-schroeder commentedon Apr 25, 2025
Update: for folks struggling with this, it happens when sub-directories in the .wrangler directory fill up with a lot of files - this can be especially true for kv values since each creates its own file on the filesystem. MacOS has a limit on how many open handles it can take at a time and eventually it runs out and you'll get this error. The only solution, afaik, is to purge those kv files occasionally.
miantiao-me commentedon Aug 10, 2025
I encountered this issue as well. I restored functionality after using
pnpx nuxi cleanup.adamdehaven commentedon Jul 18, 2026
@pi0 any chance you have ideas here? This is constantly an issue 😢
arashsheyda commentedon Jul 22, 2026
@justin-schroeder solution used to work for me but it stopped today... I found out adding this to
nuxt.conig.tsworks: