Uncaught ValueError in fun.py line 673

[geraldthewes]

Aider version: 0.56.0
Python version: 3.12.4
Platform: Linux-6.8.0-40-generic-x86_64-with-glibc2.35
Python implementation: CPython
Virtual environment: No
OS: Linux 6.8.0-40-generic (64bit)
Git version: git version 2.46.0

An uncaught exception occurred:

Traceback (most recent call last):
  File "aider", line 8, in <module>
    sys.exit(main())
             ^^^^^^
  File "main.py", line 558, in main
    if not sanity_check_repo(repo, io):
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "main.py", line 304, in sanity_check_repo
    repo.get_tracked_files()
  File "repo.py", line 273, in get_tracked_files
    for blob in commit.tree.traverse():
  File "util.py", line 575, in _traverse
    addToStack(stack, item, branch_first, nd)
  File "util.py", line 535, in addToStack
    lst = self._get_intermediate_items(item)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "tree.py", line 207, in _get_intermediate_items
    return tuple(index_object._iter_convert_to_object(index_object._cache))
                                                      ^^^^^^^^^^^^^^^^^^^
  File "util.py", line 253, in __getattr__
    self._set_cache_(attr)
  File "tree.py", line 214, in _set_cache_
    self._cache: List[TreeCacheTup] = tree_entries_from_data(ostream.read())
                                                             ^^^^^^^^^^^^^^
  File "base.py", line 138, in read
    return self[3].read(size)
           ^^^^^^^^^^^^^^^^^^
  File "stream.py", line 487, in read
    bl = self._size - self._br      # bytes left
         ^^^^^^^^^^
  File "util.py", line 253, in __getattr__
    self._set_cache_(attr)
  File "stream.py", line 461, in _set_cache_brute_
    apply_delta_data(bbuf, src_size, ddata, len(ddata), tbuf.write)
  File "fun.py", line 673, in apply_delta_data
    raise ValueError("unexpected delta opcode 0")
ValueError: unexpected delta opcode 0

I get this error when launching aider in a git report that has multiple React project

aider --model ollama/deepseek-coder-v2

If I launch it with --no-git, no error

$ aider --no-git --model ollama/deepseek-coder-v2
───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
Warning for ollama/deepseek-coder-v2: Unknown context window size and costs, using sane defaults.
Did you mean one of these?

• ollama/deepseek-coder-v2-instruct
• ollama/deepseek-coder-v2-lite-instruct
  For more info, see: https://aider.chat/docs/llms/warnings.html
  You can skip this check with --no-show-model-warnings

Proceed anyway? (Y)es/(N)o [Yes]: y
Aider v0.56.0
Model: ollama/deepseek-coder-v2 with whole edit format
Git repo: none
Repo-map: disabled
Use /help for help, run "aider --help" to see cmd line args
Note: in-chat filenames are always relative to the git working dir, not the current working dir.

But repo-map is disabled and I want to enable it. Now that issue might be independent.

[geraldthewes]

Sounds like the same issue as ticket #296 from last year

[geraldthewes]

Am I reading #292 correctly that basically aider (because of gitdb) only supports older versions of git and is basically not usable on any modern system? I'm surprised this is not a more important issue or am I missing something?

[paul-gauthier]

The fix is available in the main branch. You can get it by installing the latest version from github:

aider --install-main-branch

# or...

python -m pip install --upgrade git+https://github.com/paul-gauthier/aider.git

If you have a chance to try it, let me know if it works better for you. I'm going to close this issue for now, but feel free to add a comment here and I will re-open. Or feel free to file a new issue any time.