astral-sh/uv · error

Missing `project.name` field in: {}

Error message

Missing `project.name` field in: {}

What it means

Error "Missing `project.name` field in: {}" thrown in astral-sh/uv.

Source

Thrown at crates/uv/src/commands/project/version.rs:112

    cache: &Cache,
    workspace_cache: &WorkspaceCache,
    printer: Printer,
    preview: Preview,
    malware_settings: MalwareCheckSettings,
) -> Result<ExitStatus> {
    // Read the metadata
    let project = find_target(
        project_dir,
        package.as_ref(),
        explicit_project,
        cache,
        workspace_cache,
    )
    .await?;

    let pyproject_path = project.root().join("pyproject.toml");
    let Some(name) = project.project_name().cloned() else {
        return Err(anyhow!(
            "Missing `project.name` field in: {}",
            pyproject_path.user_display()
        ));
    };

    // Short-circuit early for a frozen read
    let is_read_only = value.is_none() && bump.is_empty();
    if let Some(frozen_source) = frozen {
        if is_read_only {
            return Box::pin(print_frozen_version(
                project,
                &name,
                frozen_source,
                &settings,
                client_builder,
                &concurrency,
                cache,
                workspace_cache,

View on GitHub (pinned to f1a42680ff)

When it happens

Trigger: Thrown at crates/uv/src/commands/project/version.rs:112 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/17d6730eef32fd23. Report an issue: GitHub.