Macro Rendering Error

File: examples/built-in-release/README.md

CalledProcessError: Command 'tree docs/examples/built-in-release' returned non-zero exit status 127.

Traceback (most recent call last):
  File "/home/docs/checkouts/readthedocs.org/user_builds/helmwave/envs/latest/lib/python3.11/site-packages/mkdocs_macros/plugin.py", line 523, in render
    return md_template.render(**page_variables)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/docs/checkouts/readthedocs.org/user_builds/helmwave/envs/latest/lib/python3.11/site-packages/jinja2/environment.py", line 1301, in render
    self.environment.handle_exception()
  File "/home/docs/checkouts/readthedocs.org/user_builds/helmwave/envs/latest/lib/python3.11/site-packages/jinja2/environment.py", line 936, in handle_exception
    raise rewrite_traceback_stack(source=source)
  File "<template>", line 8, in top-level template code
  File "/home/docs/checkouts/readthedocs.org/user_builds/helmwave/checkouts/latest/lib.py", line 8, in run_script
    return subprocess.run(script, shell=True, check=True, capture_output=True, text=True).stdout
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/docs/.asdf/installs/python/3.11.6/lib/python3.11/subprocess.py", line 571, in run
    raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError: Command 'tree docs/examples/built-in-release' returned non-zero exit status 127.