Cargo.toml not found in current directory. Please run this…

Error message

Cargo.toml not found in current directory. Please run this command from the workspace root.

What it means

Thrown by `check_workspace_root` (tooling/xtask/src/tasks/gpui.rs:290) at the start of run_publish_gpui. The publish commands mutate the root workspace manifest, so the tool verifies that a Cargo.toml exists in the current working directory; if not, it aborts with instructions to run from the workspace root.

Solutions

cd to the repository root (the directory containing the workspace Cargo.toml) and re-run the command.
In scripts/CI, add `working-directory: <repo root>` or `cd "$(git rev-parse --show-toplevel)"` before invoking xtask.
Verify with `ls Cargo.toml && grep '\[workspace\]' Cargo.toml` before running.

Example fix

// before
cd crates/gpui
cargo xtask publish-gpui

// after
cd "$(git rev-parse --show-toplevel)"
cargo xtask publish-gpui

Defensive patterns

Strategy: validation

Validate before calling

use std::path::Path;
if !Path::new("Cargo.toml").exists() {
    panic!("run from the workspace root: {} has no Cargo.toml", std::env::current_dir()?.display());
}

Prevention

Run publish commands from the git repo root: `cd "$(git rev-parse --show-toplevel)"`.
Set explicit working-directory in CI jobs and wrapper scripts.
Check `ls Cargo.toml` before running any xtask publish subcommand.

When it happens

Trigger: Invoking `cargo xtask publish-gpui` (or the equivalent package publish subcommand) from a subdirectory such as crates/gpui, a checkout subfolder, or any directory lacking Cargo.toml.

Common situations: Running the command from inside a crate directory; running from a temp/build dir; an IDE terminal opened at a nested path; publish scripts with a different cwd than expected.

Understand the failure class

Background: "File not found" and ENOENT errors: why libraries can't find a file that should exist — this error's family across 50 libraries.

Related errors

AI-assisted analysis of zed-industries/zed@916fc2b8cb (2026-09-19). Data as JSON: /api/errors/4779b7d3873e9a16. Report an issue: GitHub.

Appendix: source

Thrown at tooling/xtask/src/tasks/gpui.rs:290

        .and_then(|p| p.as_table_like_mut())
    {
        if let Some(old_entry) = profile_dev_package.get(package_name) {
            let old_entry_clone = old_entry.clone();
            profile_dev_package.remove(package_name);
            profile_dev_package.insert(crate_name, old_entry_clone);
        }
    }

    Ok(())
}

fn check_workspace_root() -> Result<()> {
    let cwd = std::env::current_dir().context("Failed to get current directory")?;

    // Check if Cargo.toml exists in the current directory
    let cargo_toml_path = cwd.join("Cargo.toml");
    if !cargo_toml_path.exists() {
        bail!(
            "Cargo.toml not found in current directory. Please run this command from the workspace root."
        );
    }

    // Check if it's a workspace by looking for [workspace] section
    let contents =
        std::fs::read_to_string(&cargo_toml_path).context("Failed to read Cargo.toml")?;

    if !contents.contains("[workspace]") {
        bail!(
            "Current directory does not appear to be a workspace root. Please run this command from the workspace root."
        );
    }

    Ok(())
}

fn check_git_clean() -> Result<()> {

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