xai-org/grok-build · error · io::Error

invalid TOML: {e}

Error message

invalid TOML: {e}

What it means

add_marketplace_source parses the existing config file with toml_edit::DocumentMut; if the file is not valid TOML, the parse error is wrapped as std::io::ErrorKind::InvalidData with the message "invalid TOML: {e}" (marketplace.rs:967-972). This prevents appending marketplace sources to a config that would be corrupted further.

Source

Thrown at crates/codegen/xai-grok-shell/src/extensions/marketplace.rs:968

    }
}

/// Append a `[[marketplace.sources]]` entry (and optionally set the official
/// flag) in one atomic `toml_edit` write, so a crash can't leave a source
/// without its flag. Idempotent on normalized git URL / local path; preserves
/// comments.
fn add_marketplace_source(
    config_path: &std::path::Path,
    name: &str,
    source: &crate::plugin::MarketplaceAddInput,
    set_official_flag: bool,
) -> std::io::Result<()> {
    if let Some(parent) = config_path.parent() {
        let _ = std::fs::create_dir_all(parent);
    }
    let existing = crate::util::config::read_to_string_or_empty(config_path)?;
    let mut doc = existing.parse::<toml_edit::DocumentMut>().map_err(|e| {
        std::io::Error::new(
            std::io::ErrorKind::InvalidData,
            format!("invalid TOML: {e}"),
        )
    })?;

    let marketplace_item = doc
        .entry("marketplace")
        .or_insert_with(|| toml_edit::Item::Table(toml_edit::Table::new()));
    let marketplace = marketplace_item.as_table_mut().ok_or_else(|| {
        std::io::Error::new(
            std::io::ErrorKind::InvalidData,
            "[marketplace] is not a table",
        )
    })?;

    let sources_item = marketplace
        .entry("sources")
        .or_insert_with(|| toml_edit::Item::ArrayOfTables(toml_edit::ArrayOfTables::new()));

View on GitHub (pinned to bc7f02eddd)

Solutions

1. Run the file through a TOML validator (e.g. `taplo check` or an online parser) and fix the reported syntax error.
2. Restore config.toml from backup or version control.
3. If regeneration is acceptable, back up and remove the file, then retry adding the marketplace source (config will be recreated).

Example fix

// before: invalid TOML (missing closing quote)
[marketplace]
name = "official
// after: valid TOML
[marketplace]
name = "official"

// validate config.toml parses before invoking marketplace add
let raw = std::fs::read_to_string(&config_path)?;
raw.parse::<toml_edit::DocumentMut>().map_err(|e| format!("config invalid: {e}"))?;

fn is_valid_toml(path: &std::path::Path) -> bool {
    std::fs::read_to_string(path).map(|s| s.parse::<toml_edit::DocumentMut>().is_ok()).unwrap_or(false)
}

match add_marketplace_source(&cfg, name, &input, false) {
    Err(e) if e.kind() == std::io::ErrorKind::InvalidData && e.to_string().starts_with("invalid TOML") => {
        eprintln!("{e}; fix config.toml syntax and retry");
    }
    other => other,
}

When it happens

Trigger: Calling add_marketplace_source (via handle_add_source, ensure_official_marketplace_source, or the local-path variant) when config.toml at config_path contains syntactically invalid TOML.

Common situations: Manual editing mistakes in config.toml (unbalanced quotes/brackets, duplicate keys); another tool wrote non-TOML content; truncation from a previous crash; wrong file passed as the config path.

Related errors

• [marketplace] is not a table
• Failed to create agent config: {e}
• Failed to load config: {e}
• Failed to parse config.toml: {e}
• marketplace.sources is not an array of tables

AI-assisted analysis of xai-org/grok-build@bc7f02eddd (2026-08-31). Data as JSON: /api/errors/060ba986edab9a76. Report an issue: GitHub.