codex - 💡(How to fix) Fix Windows: browser-use IAB can initialize and list tabs, but tab.goto() fails with `failed to start codex app-server: 系统找不到指定的路径 (os error 3)` [2 comments, 3 participants]

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openai/codex#20130Fetched 2026-04-30 06:33:25
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Error Message

Observed error: failed to start codex app-server: 系统找不到指定的路径。 (os error 3)

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What version of the Codex App are you using (From "About Codex" dialog)?

OpenAI.Codex 26.422.8496.0_x64__2p2nqsd0c76g0

What subscription do you have?

No response

What platform is your computer?

Windows x64

What issue are you seeing?

@browser-use is partially working on Windows, but external navigation through the IAB backend fails.

In my session, Browser Use can:

  • initialize successfully with setupAtlasRuntime({ backend: "iab" })
  • create/select/list tabs
  • return a selected tab object

But it fails consistently when trying to navigate to an external URL with tab.goto(...).

Observed error:

failed to start codex app-server: 系统找不到指定的路径。 (os error 3)

extent analysis

TL;DR

The issue with external navigation through the IAB backend in @browser-use on Windows may be related to a configuration or compatibility problem.

Guidance

  • Verify that the codex app-server is properly configured and running before attempting to navigate to an external URL with tab.goto(...).
  • Check the system's PATH environment variable to ensure it includes the necessary directories for the codex app-server to function correctly.
  • Investigate potential compatibility issues between the @browser-use library and the IAB backend on Windows.
  • Review the documentation for setupAtlasRuntime({ backend: "iab" }) to ensure it is being used correctly.

Example

No code snippet is provided as the issue does not contain sufficient information to create a relevant example.

Notes

The error message "系统找不到指定的路径。 (os error 3)" suggests a system-level issue, potentially related to the PATH environment variable or file system configuration.

Recommendation

Apply workaround: Investigate and resolve any system configuration issues, such as updating the PATH environment variable, to ensure the codex app-server can start correctly.

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codex - 💡(How to fix) Fix Windows: browser-use IAB can initialize and list tabs, but tab.goto() fails with `failed to start codex app-server: 系统找不到指定的路径 (os error 3)` [2 comments, 3 participants]