openai/codex · error · io::Error

Failed to read config file {}: {e}

Error message

Failed to read config file {}: {e}

What it means

Error "Failed to read config file {}: {e}" thrown in openai/codex.

Source

Thrown at codex-rs/config/src/loader/mod.rs:621

                let config_error =
                    config_error_from_toml(toml_file.as_path(), &contents, err.clone());
                io_error_from_config_error(io::ErrorKind::InvalidData, config_error, Some(err))
            })?;
            if strict_config {
                validate_config_toml_strictly(
                    toml_file.as_path(),
                    &contents,
                    &config,
                    config_parent,
                )?;
            }
            Ok(config)
        }
        Err(e) => {
            if e.kind() == io::ErrorKind::NotFound {
                Ok(TomlValue::Table(toml::map::Map::new()))
            } else {
                Err(io::Error::new(
                    e.kind(),
                    format!(
                        "Failed to read config file {}: {e}",
                        toml_file.as_path().display()
                    ),
                ))
            }
        }
    }?;

    Ok(LoadedTomlFile {
        toml: toml_value,
        base_dir,
    })
}

fn validate_config_toml_strictly(
    toml_file: &Path,

View on GitHub (pinned to 339751715c)

Solutions

1. Check that the config file exists and is readable (permissions, path).

When it happens

Trigger: Thrown at codex-rs/config/src/loader/mod.rs:621 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/44eb18333cb278ee. Report an issue: GitHub.