Update error message WRT missing checkpoint file

        print(f" - directory {model_path}", file=sys.stderr)

        print(f" - directory {model_path}", file=sys.stderr)

        if shared.cmd_opts.ckpt_dir is not None:

        if shared.cmd_opts.ckpt_dir is not None:

            print(f" - directory {os.path.abspath(shared.cmd_opts.ckpt_dir)}", file=sys.stderr)

            print(f" - directory {os.path.abspath(shared.cmd_opts.ckpt_dir)}", file=sys.stderr)

        print("Can't run without a checkpoint. Find and place a .ckpt file into any of those locations. The program will exit.", file=sys.stderr)

        print("Can't run without a checkpoint. Find and place a .ckpt or .safetensors file into any of those locations. The program will exit.", file=sys.stderr)

        exit(1)

        exit(1)

    checkpoint_info = next(iter(checkpoints_list.values()))

    checkpoint_info = next(iter(checkpoints_list.values()))