openai/codex · error · io::Error

invalid embedded packaged defaults; this is a Codex build er

Error message

invalid embedded packaged defaults; this is a Codex build error: {error}

What it means

Error "invalid embedded packaged defaults; this is a Codex build error: {error}" thrown in openai/codex.

Source

Thrown at codex-rs/config/src/loader/mod.rs:172

        })?;
        let base_dir = file.as_path().parent().ok_or_else(|| {
            io::Error::new(
                io::ErrorKind::InvalidData,
                format!(
                    "packaged defaults config file {} has no parent directory",
                    file.display()
                ),
            )
        })?;
        ConfigLayerEntry::new(
            ConfigLayerSource::PackagedDefaults { file: file.clone() },
            resolve_relative_paths_in_config_toml(config, base_dir)?,
        )
    } else {
        let file = AbsolutePathBuf::from_absolute_path(std::env::current_exe()?)?;
        let raw_toml = include_str!("../../defaults.toml");
        let config = toml::from_str(raw_toml).map_err(|error| {
            io::Error::new(
                io::ErrorKind::InvalidData,
                format!("invalid embedded packaged defaults; this is a Codex build error: {error}"),
            )
        })?;
        ConfigLayerEntry::new_with_raw_toml(
            ConfigLayerSource::PackagedDefaults { file },
            config,
            raw_toml.to_owned(),
            AbsolutePathBuf::from_absolute_path(codex_home)?,
        )
    };
    let active_user_profile = overrides.user_config_profile.clone();
    let ignore_managed_requirements = overrides.ignore_managed_requirements;
    let ignore_user_config = overrides.ignore_user_config;
    let ignore_project_config = overrides.ignore_project_config;
    let ignore_user_and_project_exec_policy_rules =
        overrides.ignore_user_and_project_exec_policy_rules;
    let mut requirements_layers = Vec::new();

View on GitHub (pinned to 339751715c)

Solutions

1. Fix the embedded packaged defaults TOML and rebuild Codex; this is a build error, not a user config error.

When it happens

Trigger: Thrown at codex-rs/config/src/loader/mod.rs:172 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of openai/codex@339751715c (2026-08-25). Data as JSON: /api/errors/5ea6941c493a71ce. Report an issue: GitHub.