astral-sh/uv · error

Invalid file path in index URL: {url}

Error message

Invalid file path in index URL: {url}

What it means

Error "Invalid file path in index URL: {url}" thrown in astral-sh/uv.

Source

Thrown at crates/uv/src/commands/project/add.rs:682

        match &dependency_type {
            DependencyType::Group(group) => {
                toml.ensure_dependency_group(group)?;
            }
            DependencyType::Optional(extra) => {
                toml.ensure_optional_dependency(extra)?;
            }
            _ => {}
        }
    }

    // Validate any indexes that were provided on the command-line to ensure
    // they point to existing non-empty directories when using path URLs.
    let mut valid_indexes = Vec::with_capacity(indexes.len());
    for index in indexes {
        if let IndexUrl::Path(url) = &index.url {
            let path = url
                .to_file_path()
                .map_err(|()| anyhow::anyhow!("Invalid file path in index URL: {url}"))?;
            if !path.is_dir() {
                bail!("Directory not found for index: {url}");
            }
            if fs_err::read_dir(&path)?.next().is_none() {
                warn_user_once!("Index directory `{url}` is empty, skipping");
                continue;
            }
        }
        valid_indexes.push(index);
    }
    let indexes = valid_indexes;

    // Add any indexes that were provided on the command-line, in priority order.
    if !raw {
        let root_dir = match &target {
            AddTarget::Script(script, _) => {
                script.path.parent().expect("script path has no parent")
            }

View on GitHub (pinned to f1a42680ff)

When it happens

Trigger: Thrown at crates/uv/src/commands/project/add.rs:682 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of astral-sh/uv@f1a42680ff (2026-08-16). Data as JSON: /api/errors/1ed5c296f6357d5b. Report an issue: GitHub.