{
  "$type": "site.standard.document",
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  "path": "/t/codex-extension-issue-in-vs-code/1379758?page=2#post_24",
  "publishedAt": "2026-04-29T02:26:31.000Z",
  "site": "https://community.openai.com",
  "textContent": "Finally find a way to make it work. Here is what I’ve done:\n\n  1. Close VSCode and Codex APP, and kill all codex related threads in Windows task manager.\n  2. remove the .codex folder in your User Folder.\n  3. IMPORTANT: Start Codex APP and login again. It will re-create the .codex folder. DO NOT start VSCode.\n  4. Start VSCode, then it works.\n\n\n\n* * *\n\nOriginal Post:\nStill have this issue in Windows 11.\nTried everything, nothing works unless downgrade to the version last week. But I want to use GPT 5.5.\n\nThese are outputs in Codex channel:\n2026-04-29 10:24:46.376 [info] Activating Codex extension\n\n2026-04-29 10:24:46.376 [info] [CodexMcpConnection] Spawning codex app-server\n\n2026-04-29 10:24:46.376 **[error]** [CodexMcpConnection] Codex process fatal error errorMessage=“Codex process errored: Failed to start Codex process: spawn UNKNOWN” exitCode=null signal=null\n\n2026-04-29 10:24:46.376 **[error]** spawn UNKNOWN\n\n2026-04-29 10:24:46.376 **[error]** [CodexWebviewProvider] **Fatal** error message=“Codex process errored: Failed to start Codex process: spawn UNKNOWN”\n\n2026-04-29 10:24:46.376 [warning] [CodexMcpConnection] Attempted to send app-server message but stdin is destroyed message={“id”:“codex.chatSessionProvider:0”,“method”:“thread/list”,“params”:{“limit”:50,“cursor”:null,“sortKey”:“created_at”,“modelProviders”:null,“archived”:false,“sourceKinds”:[]}}\n\n2026-04-29 10:24:46.377 **[error]** [CodexMcpConnection] Codex process fatal error errorMessage=“Codex process errored: Codex process is not available” exitCode=null signal=null\n\n2026-04-29 10:24:46.377 **[error]** [CodexWebviewProvider] **Fatal** error message=“Codex process errored: Codex process is not available”\n\n2026-04-29 10:24:46.377 [warning] [IpcClient] Received broadcast but no handler is configured method=thread-stream-state-changed\n\n2026-04-29 10:24:46.377 [warning] [IpcClient] Received broadcast but no handler is configured method=client-status-changed\n\n2026-04-29 10:24:46.377 [warning] [IpcClient] Received broadcast but no handler is configured method=thread-stream-state-changed\n\n2026-04-29 10:24:46.788 [info] [wsl] eligible distro list listResult=“docker-desktop-data\\ndocker-desktop”\n\n2026-04-29 10:24:46.793 [warning] [CodexMcpConnection] Attempted to send app-server message but stdin is destroyed message={“id”:“CodexWebviewProvider.webview:5627e812-4df7-4386-98e1-e54346bfb364”,“method”:“account/read”,“params”:{“refreshToken”:false}}\n\n2026-04-29 10:24:46.793 **[error]** [CodexMcpConnection] Codex process fatal error errorMessage=“Codex process errored: Codex process is not available” exitCode=null signal=null\n\n2026-04-29 10:24:46.793 **[error]** [CodexWebviewProvider] **Fatal** error message=“Codex process errored: Codex process is not available”\n\n2026-04-29 10:24:46.797 [warning] [CodexMcpConnection] Attempted to send app-server message but stdin is destroyed message={“id”:“CodexWebviewProvider.webview:7d24702e-c064-4b51-a5c3-4aab6e280d89”,“method”:“thread/list”,“params”:{“limit”:50,“cursor”:null,“sortKey”:“updated_at”,“modelProviders”:null,“archived”:false,“sourceKinds”:[]}}\n\n2026-04-29 10:24:46.798 **[error]** [CodexMcpConnection] Codex process fatal error errorMessage=“Codex process errored: Codex process is not available” exitCode=null signal=null\n\n2026-04-29 10:24:46.798 **[error]** [CodexWebviewProvider] **Fatal** error message=“Codex process errored: Codex process is not available”",
  "title": "Codex Extension issue in VS Code"
}