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EBADF: bad file descriptor - Windows 11 #3563

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EBADF: bad file descriptor - Windows 11#3563
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rekram1-node
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bugSomething isn't workingwindows

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@RichardScottOZ
RichardScottOZ
opened on Oct 30, 2025

Description

Installed opencode via npm, bun and chocolatey - download of precompiled executable - all have the same behaviour on Windows 11  opencode
ERROR 2025-10-30T00:15:05 +213ms service=default name=Error message=EBADF: bad file descriptor, read stack=Error: EBADF: bad file descriptor, read
    at readFileSync (unknown)
    at _readLocaleFile (../../node_modules/.bun/y18n@5.0.8/node_modules/y18n/build/lib/index.js:135:51)
    at __ (../../node_modules/.bun/y18n@5.0.8/node_modules/y18n/build/lib/index.js:24:18)
    at positional (../../node_modules/.bun/yargs@18.0.0/node_modules/yargs/build/lib/yargs-factory.js:802:81)
    at builder (src/cli/cmd/tui.ts:23:47)
    at applyBuilderUpdateUsageAndParse (../../node_modules/.bun/yargs@18.0.0/node_modules/yargs/build/lib/command.js:174:35)
    at runCommand (../../node_modules/.bun/yargs@18.0.0/node_modules/yargs/build/lib/command.js:164:36)
    at [runYargsParserAndExecuteCommands] (../../node_modules/.bun/yargs@18.0.0/node_modules/yargs/build/lib/yargs-factory.js:1415:93)
    at parse (../../node_modules/.bun/yargs@18.0.0/node_modules/yargs/build/lib/yargs-factory.js:704:29)
    at src/index.ts:89:11
    at asyncModuleEvaluation (native:2)
    at processTicksAndRejections (native:7:39) fatal
Error: Unexpected error, check log file at  for more details

EBADF: bad file descriptor, read
 syscall: "read",
   errno: -9,
    code: "EBADF"

      at readFileSync (unknown:1:1)
      at _readLocaleFile (../../node_modules/.bun/y18n@5.0.8/node_modules/y18n/build/lib/index.js:135:51)
      at __ (../../node_modules/.bun/y18n@5.0.8/node_modules/y18n/build/lib/index.js:24:18)
      at positional (../../node_modules/.bun/yargs@18.0.0/node_modules/yargs/build/lib/yargs-factory.js:802:81)
      at builder (src/cli/cmd/tui.ts:23:47)
      at applyBuilderUpdateUsageAndParse (../../node_modules/.bun/yargs@18.0.0/node_modules/yargs/build/lib/command.js:174:35)
      at runCommand (../../node_modules/.bun/yargs@18.0.0/node_modules/yargs/build/lib/command.js:164:36)
      at [runYargsParserAndExecuteCommands] (../../node_modules/.bun/yargs@18.0.0/node_modules/yargs/build/lib/yargs-factory.js:1415:93)
      at parse (../../node_modules/.bun/yargs@18.0.0/node_modules/yargs/build/lib/yargs-factory.js:704:29)

OpenCode version

15.29

Steps to reproduce

install opencode on windows 11 from this year
try and run it

Screenshot and/or share link

No response

Operating System

Windows 11

Terminal

Windows Terminal, Git Bash - same behaviour

Activity

  1. RichardScottOZ
    added
    bugSomething isn't working
    on Oct 30, 2025
  2. rekram1-node
    added
    windows
    on Oct 30, 2025
  3. rekram1-node
    self-assigned this
    on Oct 30, 2025

  4. rekram1-node commented on Oct 30, 2025

    @rekram1-node
    rekram1-node
    on Oct 30, 2025
    Contributor

    I will look into this our windows support sucks, needs to be way better, my apologies

  5. RichardScottOZ commented on Nov 1, 2025

    @RichardScottOZ
    RichardScottOZ
    on Nov 1, 2025
    Author

    @rekram1-node - if you want anything tested, let me know. I did try several recent versions too to check - same behaviour. Tried a lot of things - symlinks, aliases of git bash shells, paths, env var or whatever, no luck - so probably needs solving at a lower level in whatever that interplay of local, assuming shells and bun even if you don't have it from someone that understands that part well.

  6. rekram1-node commented on Nov 1, 2025

    @rekram1-node
    rekram1-node
    on Nov 1, 2025
    Contributor

    sounds good, I did just setup a windows 11 vm so I will start testing in it more

  7. aaron-cardenas commented on Dec 9, 2025

    @aaron-cardenas
    aaron-cardenas
    on Dec 9, 2025

    same for me on win 10:

    c:\wamp\www\Comunal>scoop install extras/opencode
    Installing 'opencode' (1.0.134) [64bit] from 'extras' bucket
    Loading opencode-windows-x64.zip from cache
    Checking hash of opencode-windows-x64.zip ... ok.
    Extracting opencode-windows-x64.zip ... done.
    Linking ~\scoop\apps\opencode\current => ~\scoop\apps\opencode\1.0.134
    Creating shim for 'opencode'.
    Creating shortcut for OpenCode (opencode.exe)
    'opencode' (1.0.134) was installed successfully!

    c:\wamp\www\Comunal>opencode
    ERROR 2025-12-09T00:50:18 +388ms service=default name=Error message=EBADF: bad file descriptor, read stack=Error: EBADF: bad file descriptor, read
    at readFileSync (unknown)
    at _readLocaleFile (../../node_modules/.bun/y18n@5.0.8/node_modules/y18n/build/lib/index.js:135:51)
    at __ (../../node_modules/.bun/y18n@5.0.8/node_modules/y18n/build/lib/index.js:24:18)
    at positional (../../node_modules/.bun/yargs@18.0.0/node_modules/yargs/build/lib/yargs-factory.js:802:81)
    at builder (src/cli/cmd/tui/thread.ts:19:8)
    at applyBuilderUpdateUsageAndParse (../../node_modules/.bun/yargs@18.0.0/node_modules/yargs/build/lib/command.js:174:35)
    at runCommand (../../node_modules/.bun/yargs@18.0.0/node_modules/yargs/build/lib/command.js:164:36)
    at [runYargsParserAndExecuteCommands] (../../node_modules/.bun/yargs@18.0.0/node_modules/yargs/build/lib/yargs-factory.js:1415:93)
    at parse (../../node_modules/.bun/yargs@18.0.0/node_modules/yargs/build/lib/yargs-factory.js:704:29)
    at src/index.ts:111:13
    at asyncModuleEvaluation (native:2)
    at processTicksAndRejections (native:7:39) fatal
    Error: Unexpected error, check log file at for more details

    EBADF: bad file descriptor, read
    syscall: "read",
    errno: -9,
    code: "EBADF"

      at readFileSync (unknown:1:1)
  at _readLocaleFile (../../node_modules/.bun/y18n@5.0.8/node_modules/y18n/build/lib/index.js:135:51)
  at __ (../../node_modules/.bun/y18n@5.0.8/node_modules/y18n/build/lib/index.js:24:18)
  at positional (../../node_modules/.bun/yargs@18.0.0/node_modules/yargs/build/lib/yargs-factory.js:802:81)
  at builder (src/cli/cmd/tui/thread.ts:19:8)
  at applyBuilderUpdateUsageAndParse (../../node_modules/.bun/yargs@18.0.0/node_modules/yargs/build/lib/command.js:174:35)
  at runCommand (../../node_modules/.bun/yargs@18.0.0/node_modules/yargs/build/lib/command.js:164:36)
  at [runYargsParserAndExecuteCommands] (../../node_modules/.bun/yargs@18.0.0/node_modules/yargs/build/lib/yargs-factory.js:1415:93)
  at parse (../../node_modules/.bun/yargs@18.0.0/node_modules/yargs/build/lib/yargs-factory.js:704:29)

    c:\wamp\www\Comunal>scoop uninstall extras/opencode
    Uninstalling 'opencode' (1.0.134).
    Removing shim 'opencode.shim'.
    Removing shim 'opencode.exe'.
    Removing shortcut ~\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Scoop Apps\OpenCode.lnk
    Unlinking ~\scoop\apps\opencode\current
    'opencode' was uninstalled.

  8. rekram1-node commented on Dec 9, 2025

    @rekram1-node
    rekram1-node
    on Dec 9, 2025
    Contributor

    Does that happen w/ all install methods for you?

  9. aaron-cardenas commented on Dec 9, 2025

    @aaron-cardenas
    aaron-cardenas
    on Dec 9, 2025

    I tried the installation with npm, Scup and again with Chocolatey, got the same error.

  10. AlexanderVoid45 commented on Jan 18, 2026

    @AlexanderVoid45
    AlexanderVoid45
    on Jan 18, 2026

    same for me at 1 of my pc`s of 2(where ive tried opencode). have same setup, same antimalvare.

  11. AlexanderVoid45 commented on Jan 22, 2026

    @AlexanderVoid45
    AlexanderVoid45
    on Jan 22, 2026

    Found the fix

    The issue is in y18n library - it tries to readFileSync locale files, which fails with EBADF/EUNKNOWN in Bun compiled binaries on Windows.

    Solution

    Add patch file patches/y18n@5.0.8.patch:

    diff --git a/build/lib/index.js b/build/lib/index.js
--- a/build/lib/index.js
+++ b/build/lib/index.js
@@ -139,7 +139,7 @@ class Y18N {
         if (err instanceof SyntaxError) {
             err.message = 'syntax error in ' + languageFile;
         }
-        if (err.code === 'ENOENT')
+        if (err.code === 'ENOENT' || err.code === 'EBADF' || err.code === 'EUNKNOWN')
             localeLookup = {};
         else
             throw err;

    And add to package.json:

    "patchedDependencies": {
  "y18n@5.0.8": "patches/y18n@5.0.8.patch"
}

    Tested on Windows 11 (22000.2538) - both CLI and desktop work after this fix.

  12. github-actions commented on Mar 26, 2026

    @github-actions
    github-actionsBot
    on Mar 26, 2026 – with GitHub Actions
    Contributor

    To stay organized issues are automatically closed after 90 days of no activity. If the issue is still relevant please open a new one.

  13. github-actions
    closed this as completedon Mar 26, 2026

  14. RichardScottOZ commented on Mar 26, 2026

    @RichardScottOZ
    RichardScottOZ
    on Mar 26, 2026
    Author

    Is this going to be built in?

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