CLI fails to start with Error: thread/start failed during TUI bootstrap
Open 💬 2 comments Opened Apr 17, 2026 by sator-imaging
💡 Likely answer: A maintainer (github-actions[bot], contributor)
responded on this thread — see the highlighted reply below.
What version of Codex CLI is running?
0.119.0 or later
What subscription do you have?
Plus
Which model were you using?
CLI doesn't start
What platform is your computer?
WSL on Windows
What terminal emulator and version are you using (if applicable)?
Windows Terminal
What issue are you seeing?
After updating to 0.119.0 or later, codex always emits error: Error: thread/start failed during TUI bootstrap.
What steps can reproduce the bug?
Just run codex.
Note that "Update available!" message is shown and then choose skip, the above error is emitted and exit. If using latest version, just fails to start with error.
What is the expected behavior?
_No response_
Additional information
I have installed both Codex App and CLI.
2 Comments
Potential duplicates detected. Please review them and close your issue if it is a duplicate.
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See #18064.