Aider installed using pixi (via `conda-forge`) result in `LookupError`

[junyi-hou]

getting the following after running pixi add aider-chat && pixi install

Aider version: 0.86.1
Python version: 3.12.12
Platform: macOS-26.1-arm64-arm-64bit
Python implementation: CPython
Virtual environment: No
OS: Darwin 25.1.0 (64bit)
Git version: git version 2.50.1 (Apple Git-155)

An uncaught exception occurred:

Traceback (most recent call last):
  File "__init__.py", line 207, in get_binding
    module = import_module(name=f".bindings.{language_name}", package=__package__)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "__init__.py", line 90, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "<frozen importlib._bootstrap>", line 1387, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1360, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1324, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'tree_sitter_language_pack.bindings.elisp'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "aider", line 10, in <module>
    sys.exit(main())
             ^^^^^^
  File "main.py", line 1162, in main
    coder.run()
  File "base_coder.py", line 887, in run
    self.run_one(user_message, preproc)
  File "base_coder.py", line 934, in run_one
    list(self.send_message(message))
  File "base_coder.py", line 1429, in send_message
    chunks = self.format_messages()
             ^^^^^^^^^^^^^^^^^^^^^^
  File "base_coder.py", line 1334, in format_messages
    chunks = self.format_chat_chunks()
             ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "base_coder.py", line 1281, in format_chat_chunks
    chunks.repo = self.get_repo_messages()
                  ^^^^^^^^^^^^^^^^^^^^^^^^
  File "base_coder.py", line 752, in get_repo_messages
    repo_content = self.get_repo_map()
                   ^^^^^^^^^^^^^^^^^^^
  File "base_coder.py", line 724, in get_repo_map
    repo_content = self.repo_map.get_repo_map(
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "repomap.py", line 134, in get_repo_map
    files_listing = self.get_ranked_tags_map(
                    ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "repomap.py", line 598, in get_ranked_tags_map
    result = self.get_ranked_tags_map_uncached(
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "repomap.py", line 667, in get_ranked_tags_map_uncached
    tree = self.to_tree(ranked_tags[:middle], chat_rel_fnames)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "repomap.py", line 750, in to_tree
    output += self.render_tree(cur_abs_fname, cur_fname, lois)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "repomap.py", line 706, in render_tree
    context = TreeContext(
              ^^^^^^^^^^^^
  File "grep_ast.py", line 46, in __init__
    parser = get_parser(lang)
             ^^^^^^^^^^^^^^^^
  File "__init__.py", line 248, in get_parser
    return Parser(get_language(language_name=language_name))
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "__init__.py", line 235, in get_language
    binding = get_binding(language_name)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "__init__.py", line 223, in get_binding
    raise LookupError(f"Could not find language library for {language_name}") from e
LookupError: Could not find language library for elisp