exceptiongroup.ExceptionGroup: unhandled errors in a TaskGroup (1 sub-exception)

[huazai665]

when I run "uv run gemini_client.py", it occurs errors.
Exception Group Traceback (most recent call last):
| File "/home/yoan/ros-mcp-client/clients/gemini_live/gemini_client.py", line 375, in
| main()
| File "/home/yoan/ros-mcp-client/clients/gemini_live/gemini_client.py", line 371, in main
| asyncio.run(client.run())
| File "/home/yoan/.local/share/uv/python/cpython-3.10.19-linux-x86_64-gnu/lib/python3.10/asyncio/runners.py", line 44, in run
| return loop.run_until_complete(main)
| File "/home/yoan/.local/share/uv/python/cpython-3.10.19-linux-x86_64-gnu/lib/python3.10/asyncio/base_events.py", line 649, in run_until_complete
| return future.result()
| File "/home/yoan/ros-mcp-client/clients/gemini_live/gemini_client.py", line 233, in run
| async with stdio_client(server_params) as (read, write):
| File "/home/yoan/.local/share/uv/python/cpython-3.10.19-linux-x86_64-gnu/lib/python3.10/contextlib.py", line 217, in aexit
| await self.gen.athrow(typ, value, traceback)
| File "/home/yoan/ros-mcp-client/.venv/lib/python3.10/site-packages/mcp/client/stdio/init.py", line 182, in stdio_client
| async with (
| File "/home/yoan/ros-mcp-client/.venv/lib/python3.10/site-packages/anyio/_backends/_asyncio.py", line 781, in aexit
| raise BaseExceptionGroup(
| exceptiongroup.ExceptionGroup: unhandled errors in a TaskGroup (1 sub-exception)
+-+---------------- 1 ----------------
| Exception Group Traceback (most recent call last):
| File "/home/yoan/ros-mcp-client/.venv/lib/python3.10/site-packages/mcp/client/stdio/init.py", line 189, in stdio_client
| yield read_stream, write_stream
| File "/home/yoan/ros-mcp-client/clients/gemini_live/gemini_client.py", line 234, in run
| async with ClientSession(read, write) as mcp_session:
| File "/home/yoan/ros-mcp-client/.venv/lib/python3.10/site-packages/anyio/_backends/_asyncio.py", line 781, in aexit
| raise BaseExceptionGroup(
| exceptiongroup.ExceptionGroup: unhandled errors in a TaskGroup (1 sub-exception)
+-+---------------- 1 ----------------
| Traceback (most recent call last):
| File "/home/yoan/ros-mcp-client/clients/gemini_live/gemini_client.py", line 331, in run
| asyncio.TaskGroup() as task_group,
| AttributeError: module 'asyncio' has no attribute 'TaskGroup'
|
| During handling of the above exception, another exception occurred:
|
| Traceback (most recent call last):
| File "/home/yoan/ros-mcp-client/clients/gemini_live/gemini_client.py", line 350, in run
| except asyncio.ExceptionGroup as exception_group:
| AttributeError: module 'asyncio' has no attribute 'ExceptionGroup'

[stex2005]

@huazai665 can you please share the characteristics of your system please?

[huazai665]

@huazai665 can you please share the characteristics of your system please?

system: ubuntu 20.04
python: 3.8.10
nodejs: 20.19.5
ros: Noetic

[stex2005]

This is interesting, bc in the pyproject.toml we require Python >= 3.10, therefore uv should install the correct version independently.

I would recommend upgrading to Python 3.11 in pyproject.toml and trying again.

I added these changes: python minimum version to 3.11 in PR #26

[huazai665]

This is interesting, bc in the pyproject.toml we require Python >= 3.10, therefore uv should install the correct version independently.

I would recommend upgrading to Python 3.11 in pyproject.toml and trying again.

I added these changes: python minimum version to 3.11 in PR #26

@stex2005 I upgraded Python 3.11, but the error is the same.

[stex2005]

Make sure you update the pyproject.toml, not the python installation. If launching through the uv run command, uv will install the minimum version specified in pyproject in a virtual environment.

[huazai665]

Yes， I installed uv using the command: curl -LsSf https://astral.sh/uv/install.sh | sh
Then I run ./setup_gemini_client.sh

[stex2005]

Can you run 'uv sync' and paste here.

[huazai665]

Can you run 'uv sync' and paste here.

[stex2005]

Can you please paste here the error again, if uv is installing properly Pytho 3.11, the initial error should be different.

[itsbharatj]

@huazai665, I was facing the same error.

Please try running uv python pin 3.11 then uv sync. Make sure you have edited the pyproject.toml with the python version 3.11
I think @stex2005 has raised the PR #26 for the same.

Hope this solves your issue.

Thanks,
Bharat