Windows: OpenCode fails to start - Cannot find module '@openauthjs/openauth/pkce' #6935

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1. github-actions

   assigned

   rekram1-node

   on Jan 5, 2026
2. github-actions

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   windows

   on Jan 5, 2026
3. github-actions commented on Jan 5, 2026

   

   github-actionsBot

   on Jan 5, 2026 – with GitHub Actions

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   This issue might be a duplicate of existing issues. Please check:

   • Installation fails on Fedora 43 with npm after version v1.0.152 #5604: Installation fails on Fedora 43 with npm after version v1.0.152 - Similar missing module issues during installation
   • Cannot build Open-Code due to missing @tsconfig/bun dependency #4127: Cannot build OpenCode due to missing @tsconfig/bun dependency - Related module resolution issues
   • Docker container fails to start due to bun dependency install issue #4774: Docker container fails to start due to bun dependency install issue - Similar @openauthjs/openauth problems in containerized environments
   • Github Enterprise authorization #3936: Github Enterprise authorization - Related authentication module failures

   Additionally, since this issue involves authentication keybinds and the auth login command, please check our pinned keybinds documentation: #4997
4. jqbdyhz commented on Jan 5, 2026

   

   jqbdyhz

   on Jan 5, 2026

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   Thanks for the auto-detection! I checked the related issues but this appears to be a distinct problem:

   This is NOT a network/installation race condition - the package @openauthjs/openauth@0.4.3 is successfully downloaded, but its published npm tarball is missing the dist/esm/ directory entirely.

   Evidence:

   • package.json declares: "./*": { "import": "./dist/esm/*.js" }
   • But only dist/types/ and src/ exist in the installed package
   • The src/pkce.ts source file exists, but no compiled dist/esm/pkce.js

   This means the upstream package was published without running the build step, so the compiled ESM output is missing.

   Workaround confirmed working: manually create ~/.cache/opencode/node_modules/@openauthjs/openauth/dist/esm/pkce.js with a self-contained PKCE implementation.
5. jqbdyhz commented on Jan 5, 2026

   

   jqbdyhz

   on Jan 5, 2026

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   Update: Issue persists in v1.1.2 (Desktop App & CLI)

   Just tested with a fresh install of v1.1.2 (both Desktop App and pnpm-installed CLI) - the issue still occurs.

   Why the workaround keeps disappearing

   After applying the workaround, OpenCode works fine. But the fix gets lost when:

   1. OpenCode auto-updates - dependencies are re-downloaded, overwriting the manually created pkce.js
   2. Cache rebuild - OpenCode sometimes rebuilds .cache/opencode/node_modules/
   3. System cleanup tools - tools like CCleaner may clean .cache directories

   One-liner fix (PowerShell)

   For anyone hitting this on Windows, here's a quick fix:

   $d = "$env:USERPROFILE\.cache\opencode\node_modules\@openauthjs\openauth\dist\esm"; New-Item -ItemType Directory -Force -Path $d | Out-Null; @'
   function base64UrlEncode(buffer) { const bytes = new Uint8Array(buffer); let binary = ""; for (let i = 0; i < bytes.byteLength; i++) binary += String.fromCharCode(bytes[i]); return btoa(binary).replace(/\+/g, "-").replace(/\//g, "_").replace(/=+$/, ""); }
   export async function generatePKCE() { const verifierBytes = new Uint8Array(32); crypto.getRandomValues(verifierBytes); const verifier = base64UrlEncode(verifierBytes); const encoder = new TextEncoder(); const data = encoder.encode(verifier); const hash = await crypto.subtle.digest("SHA-256", data); const challenge = base64UrlEncode(hash); return { verifier, challenge, method: "S256" }; }
   export function createChallenge(verifier) { const encoder = new TextEncoder(); const data = encoder.encode(verifier); return crypto.subtle.digest("SHA-256", data).then(base64UrlEncode); }
   '@ | Set-Content "$d\pkce.js" -Encoding UTF8; Write-Host "Fixed!"

   Suggested permanent fix

   The real fix should happen upstream - either:

   1. @openauthjs/openauth publishes a version with dist/esm/ included
   2. Or OpenCode pins to a working version / uses a different import path

   ---

   🤖 Generated with Claude Code

   👍React with 👍1Reacted by Error
6. jqbdyhz

   changed the title [-]Windows: auth login fails with 'Cannot find module @openauthjs/openauth/pkce'[/-] [+]Windows: OpenCode fails to start - Cannot find module '@openauthjs/openauth/pkce'[/+] on Jan 5, 2026
7. ni-caicai commented on Jan 12, 2026

   

   ni-caicai

   on Jan 12, 2026

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   $d = "$env:USERPROFILE.cache\opencode\node_modules@openauthjs\openauth\dist\esm"; New-Item -ItemType Directory -Force -Path $d | Out-Null; @'
   function base64UrlEncode(buffer) { const bytes = new Uint8Array(buffer); let binary = ""; for (let i = 0; i < bytes.byteLength; i++) binary += String.fromCharCode(bytes[i]); return btoa(binary).replace(/+/g, "-").replace(///g, "_").replace(/=+$/, ""); }
   export async function generatePKCE() { const verifierBytes = new Uint8Array(32); crypto.getRandomValues(verifierBytes); const verifier = base64UrlEncode(verifierBytes); const encoder = new TextEncoder(); const data = encoder.encode(verifier); const hash = await crypto.subtle.digest("SHA-256", data); const challenge = base64UrlEncode(hash); return { verifier, challenge, method: "S256" }; }
   export function createChallenge(verifier) { const encoder = new TextEncoder(); const data = encoder.encode(verifier); return crypto.subtle.digest("SHA-256", data).then(base64UrlEncode); }
   '@ | Set-Content "$d\pkce.js" -Encoding UTF8; Write-Host "Fixed!"

   Perfect repair，You are so great!

   Suggested permanent fix
8. HWOUq1xd7c commented on Feb 19, 2026

   

   HWOUq1xd7c

   on Feb 19, 2026

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   用everything去清理掉所有和openauth有关的内容，并清空全局npm-cache，卸载opencode并重装，经测试有效
9. github-actions commented on Apr 21, 2026

   

   github-actionsBot

   on Apr 21, 2026 – with GitHub Actions

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   To stay organized issues are automatically closed after 60 days of no activity. If the issue is still relevant please open a new one.
10. github-actions

    closed this as completedon Apr 21, 2026