return 1, err
	}

	if goarch := os.Getenv("GOARCH"); goarch == "arm64" {
		err = runOnDevice(appdir)
	} else {
		err = runOnSimulator(appdir)
	}
	if err != nil {
		// If the lldb driver completed with an exit code, use that.
		if err, ok := err.(*exec.ExitError); ok {
			if ws, ok := err.Sys().(interface{ ExitStatus() int }); ok {
				return ws.ExitStatus(), nil
			}
		}
		return 1, err
	}