DioxusLabs/dioxus · error · anyhow::Error

Bundle identifier was not provided in `Dioxus.toml`. Add i

Error message

Bundle identifier was not provided in `Dioxus.toml`. Add it as:

[bundle]
identifier = "com.mycompany"

What it means

Validation guard in bundle_with_package_types: instead of failing silently when a bundled output requires an identifier, the code checks required Dioxus.toml fields and bails with an actionable snippet. This error means the `[bundle]` section of Dioxus.toml has no `identifier` key, which macOS app bundles (and other package formats) require — the input at fault is the project's bundle configuration.

Source

Thrown at packages/cli/src/cli/bundle.rs:170

            let krate = &build;
            let exe = build.main_exe();

            _ = std::fs::remove_dir_all(krate.bundle_dir(build.bundle));

            let mut name: PathBuf = krate.executable_name().into();

            if build.triple.operating_system == OperatingSystem::Windows {
                name.set_extension("exe");
            }
            std::fs::create_dir_all(krate.bundle_dir(build.bundle))
                .context("Failed to create bundle directory")?;
            std::fs::copy(&exe, krate.bundle_dir(build.bundle).join(&name)).with_context(
                || "Failed to copy the output executable into the bundle directory",
            )?;

            // Check if required fields are provided instead of failing silently.
            if build.config.bundle.identifier.is_none() {
                bail!(
                    "\n\nBundle identifier was not provided in `Dioxus.toml`. Add it as:\n\n[bundle]\nidentifier = \"com.mycompany\"\n\n"
                );
            }
            if build.config.bundle.publisher.is_none() {
                bail!(
                    "\n\nBundle publisher was not provided in `Dioxus.toml`. Add it as:\n\n[bundle]\npublisher = \"MyCompany\"\n\n"
                );
            }
        }

        let ctx = crate::bundler::BundleContext::new(build, package_types).await?;

        tracing::debug!("Bundling project for {:?}", ctx.package_types());

        let bundles = ctx.bundle_project().await.inspect_err(|err| {
            tracing::error!("Failed to bundle project: {:#?}", err);
            if cfg!(target_os = "macos") {
                tracing::error!("Make sure you have automation enabled in your terminal (https://github.com/tauri-apps/tauri/issues/3055#issuecomment-1624389208) and full disk access enabled for your terminal (https://github.com/tauri-apps/tauri/issues/3055#issuecomment-1624389208)");

View on GitHub (pinned to 24f6a829df)

Solutions

1. Add the bundle identifier to Dioxus.toml: [bundle] identifier = 'com.mycompany'.

When it happens

Trigger: Thrown at packages/cli/src/cli/bundle.rs:170 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of DioxusLabs/dioxus@24f6a829df (2026-08-23). Data as JSON: /api/errors/a68bb86434bb5421. Report an issue: GitHub.