Uncaught GitCommandNotFound in cmd.py line 1276

[altjx]

Aider version: 0.77.0 Python version: 3.12.8 Platform: macOS-15.3.1-arm64-64bit Python implementation: CPython Virtual environment: Yes OS: Darwin 24.3.0 (64bit) Git information unavailable

An uncaught exception occurred:

Traceback (most recent call last):
  File "cmd.py", line 1262, in execute
    proc = safer_popen(
           ^^^^^^^^^^^^
  File "subprocess.py", line 1026, in __init__
    self._execute_child(args, executable, preexec_fn, close_fds,
  File "subprocess.py", line 1955, in _execute_child
    raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: 'git'

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

Traceback (most recent call last):
  File "aider", line 8, in <module>
    sys.exit(main())
             ^^^^^^
  File "main.py", line 723, in main
    git_root = setup_git(git_root, io)
               ^^^^^^^^^^^^^^^^^^^^^^^
  File "main.py", line 130, in setup_git
    user_name = repo.git.config("--get", "user.name") or None
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "cmd.py", line 986, in <lambda>
    return lambda *args, **kwargs: self._call_process(name, *args, **kwargs)
                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "cmd.py", line 1599, in _call_process
    return self.execute(call, **exec_kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "cmd.py", line 1276, in execute
    raise GitCommandNotFound(redacted_command, err) from err
git.exc.GitCommandNotFound: Cmd('git') not found due to: FileNotFoundError('[Errno 2] No such file or directory: 'git'')
  cmdline: git config --get user.name

Tried running aider, which generated an exception. Tried having it automatically open a PR, and that failed too. Running macOS Sequoia 15.3.1 on a Mac Studio with an M2 Ultra. I also have git and everything else installed to manage my github repo from the CLI, FWIW.

Start to finish from install to error

Hope this information helps!

[paul-gauthier]

SorThanks for trying aider and filing this issue.

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 --upgrade-strategy only-if-needed git+https://github.com/Aider-AI/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.

[Ceesaxp]

Same issue on a fresh 0.80.2.dev11+g3992681b:

# Uncaught GitCommandNotFound in cmd.py line 1276

Aider version: 0.80.2.dev11+g3992681b
Python version: 3.12.9
Platform: macOS-15.4-arm64-64bit
Python implementation: CPython
Virtual environment: Yes
OS: Darwin 24.4.0 (64bit)
Git information unavailable

An uncaught exception occurred:

Traceback (most recent call last): File "cmd.py", line 1262, in execute proc = safer_popen( ^^^^^^^^^^^^ File "subprocess.py", line 1028, in init self._execute_child(args, executable, preexec_fn, close_fds, File "subprocess.py", line 1963, in _execute_child raise child_exception_type(errno_num, err_msg, err_filename) FileNotFoundError: [Errno 2] No such file or directory: 'git'

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

Traceback (most recent call last): File "aider", line 8, in sys.exit(main()) ^^^^^^ File "main.py", line 729, in main git_root = setup_git(git_root, io) ^^^^^^^^^^^^^^^^^^^^^^^ File "main.py", line 131, in setup_git user_name = repo.git.config("--get", "user.name") or None ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "cmd.py", line 986, in return lambda *args, **kwargs: self._call_process(name, *args, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "cmd.py", line 1599, in _call_process return self.execute(call, **exec_kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "cmd.py", line 1276, in execute raise GitCommandNotFound(redacted_command, err) from err git.exc.GitCommandNotFound: Cmd('git') not found due to: FileNotFoundError('[Errno 2] No such file or directory: 'git'') cmdline: git config --get user.name

Please consider reporting this bug to help improve aider!
Open a GitHub Issue pre-filled with the above error in your browser? (Y/n) n
Traceback (most recent call last):
  File "/Users/andrei/.local/pipx/venvs/aider-chat/lib/python3.12/site-packages/git/cmd.py", line 1262, in execute
    proc = safer_popen(
           ^^^^^^^^^^^^
  File "/opt/homebrew/Cellar/[email protected]/3.12.9/Frameworks/Python.framework/Versions/3.12/lib/python3.12/subprocess.py", line 1028, in __init__
    self._execute_child(args, executable, preexec_fn, close_fds,
  File "/opt/homebrew/Cellar/[email protected]/3.12.9/Frameworks/Python.framework/Versions/3.12/lib/python3.12/subprocess.py", line 1963, in _execute_child
    raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: 'git'

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

Traceback (most recent call last):
  File "/Users/andrei/.local/bin/aider", line 8, in <module>
    sys.exit(main())
             ^^^^^^
  File "/Users/andrei/.local/pipx/venvs/aider-chat/lib/python3.12/site-packages/aider/main.py", line 729, in main
    git_root = setup_git(git_root, io)
               ^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/andrei/.local/pipx/venvs/aider-chat/lib/python3.12/site-packages/aider/main.py", line 131, in setup_git
    user_name = repo.git.config("--get", "user.name") or None
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/andrei/.local/pipx/venvs/aider-chat/lib/python3.12/site-packages/git/cmd.py", line 986, in <lambda>
    return lambda *args, **kwargs: self._call_process(name, *args, **kwargs)
                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/andrei/.local/pipx/venvs/aider-chat/lib/python3.12/site-packages/git/cmd.py", line 1599, in _call_process
    return self.execute(call, **exec_kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/andrei/.local/pipx/venvs/aider-chat/lib/python3.12/site-packages/git/cmd.py", line 1276, in execute
    raise GitCommandNotFound(redacted_command, err) from err
git.exc.GitCommandNotFound: Cmd('git') not found due to: FileNotFoundError('[Errno 2] No such file or directory: 'git'')
  cmdline: git config --get user.name

First upgraded, then installed with python -m pip install --upgrade --upgrade-strategy only-if-needed git+https://github.com/Aider-AI/aider.git

[paul-gauthier]

Thanks I will look into it.

Can you share any settings or switches you are using with aider?

[Ceesaxp]

I typically run it as: aider --edit-format diff --model sonnet --show-diffs --watch-files --no-auto-commits

But the same happens even without switches.

It might be not specific to aider – 0.79.2 from brew also breaks.

[Ceesaxp]

FWIW, after many iterations I have figured out what the issue was.

Here’s what’s happening:

• I have a $HOME/.env where I define environment vars for various shells and interaction modes.
• python-dotenv tries to parse your $HOME/.env as an .env file in the format of KEY=VALUE pairs only — no export, no shell syntax.
• When aider uses python-dotenv.load_dotenv(), it sees export PATH=... and fails to parse it, silently or otherwise, overriding or nullifying my environment, especially the PATH, hence the missing git.

Solution:

• Move $HOME/.env to $HOME/.env.sh and update rc files to source that instead.
• Create a clean(er) $HOME/.env that follows the KEY=VALUE syntax to be used tools like aider, direnv, or Docker Compose