[REPORT] Error processing document: Error in step 'extract_file_data': unhandled errors in a TaskGroup (1 sub-exception) #26
Description
Checklist
Before reporting bugs or help requests, please fill out the following checklist:
- I set the
.envfile with the necessary keys, including OPENAI_API_KEY, LLAMACLOUD_API_KEY, ELEVENLABS_API_KEY - My API keys are all functioning and have at least some credit balance
- I ran both the scripts in the
toolsdirectory - I checked that my LlamaCloud Extract Agent and my LlamaCloud Index has been correctly created and are functioning (using the playground functionality in the UI
- I activated the virtual environment and ensured that all the dependencies are installed properly
- As a first step, I launched the docker services through
docker compose up -d - As a second step, I launched the MCP server through
uv run src/notebookllama/server.py - As a third and last step, I launched the Streamlit app through
strealit run src/notebookllama/Home.py
Issue Description
My issue is... Error processing document: Error in step 'extract_file_data': unhandled errors in a TaskGroup (1 sub-exception)
Relevant Traceback
Overriding of current TracerProvider is not allowed
Emitting span Workflow.run-6fc185a2-cc9d-48af-8eed-3df3e37238ab at time: 2025-07-11 12:51:34.087447
Emitting span Workflow.run-6fc185a2-cc9d-48af-8eed-3df3e37238ab at time: 2025-07-11 12:51:34.088089
Emitting span NotebookLMWorkflow.extract_file_data-2aca5cbe-2bb9-40c5-bae4-b3803a5a7eed at time: 2025-07-11 12:51:34.089040
Emitting span NotebookLMWorkflow.extract_file_data-2aca5cbe-2bb9-40c5-bae4-b3803a5a7eed at time: 2025-07-11 12:51:34.089090
Registering a SpanDropEvent event at time: 2025-07-11 12:52:04.183099
Registering a SpanDropEvent event at time: 2025-07-11 12:52:04.188922
Preparing to exit span NotebookLMWorkflow.extract_file_data-2aca5cbe-2bb9-40c5-bae4-b3803a5a7eed with an error at time: 2025-07-11 12:52:04.189194
Preparing to exit span NotebookLMWorkflow.extract_file_data-2aca5cbe-2bb9-40c5-bae4-b3803a5a7eed with an error at time: 2025-07-11 12:52:04.190205
Registering a SpanDropEvent event at time: 2025-07-11 12:52:04.193006
Registering a SpanDropEvent event at time: 2025-07-11 12:52:04.193156
Preparing to exit span Workflow.run-6fc185a2-cc9d-48af-8eed-3df3e37238ab with an error at time: 2025-07-11 12:52:04.193203
Preparing to exit span Workflow.run-6fc185a2-cc9d-48af-8eed-3df3e37238ab with an error at time: 2025-07-11 12:52:04.193379
Exception in callback Dispatcher.span.<locals>.wrapper.<locals>.handle_future_result()() at /Users/lennonjesus/Projetos/MPRJ/notebookllama/.venv/lib/python3.13/site-packages/llama_index_instrumentation/dispatcher.py:277
handle: <Handle Dispatcher.span.<locals>.wrapper.<locals>.handle_future_result()() at /Users/lennonjesus/Projetos/MPRJ/notebookllama/.venv/lib/python3.13/site-packages/llama_index_instrumentation/dispatcher.py:277>
+ Exception Group Traceback (most recent call last):
| File "/Users/lennonjesus/Projetos/MPRJ/notebookllama/.venv/lib/python3.13/site-packages/workflows/context/context.py", line 687, in _step_worker
| new_ev = await instrumented_step(**kwargs)
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
| File "/Users/lennonjesus/Projetos/MPRJ/notebookllama/.venv/lib/python3.13/site-packages/llama_index_instrumentation/dispatcher.py", line 365, in async_wrapper
| result = await func(*args, **kwargs)
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
| File "/Users/lennonjesus/Projetos/MPRJ/notebookllama/src/notebookllama/workflow.py", line 48, in extract_file_data
| result = await mcp_client.call_tool(
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
| tool_name="process_file_tool", arguments={"filename": ev.file}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
| )
| ^
| File "/Users/lennonjesus/Projetos/MPRJ/notebookllama/.venv/lib/python3.13/site-packages/llama_index/tools/mcp/client.py", line 297, in call_tool
| async with self._run_session() as session:
| ~~~~~~~~~~~~~~~~~^^
| File "/Users/lennonjesus/.local/share/uv/python/cpython-3.13.0-macos-aarch64-none/lib/python3.13/contextlib.py", line 235, in __aexit__
| await self.gen.athrow(value)
| File "/Users/lennonjesus/Projetos/MPRJ/notebookllama/.venv/lib/python3.13/site-packages/llama_index/tools/mcp/client.py", line 225, in _run_session
| async with streamablehttp_client(
| ~~~~~~~~~~~~~~~~~~~~~^
| self.command_or_url, auth=self.auth, headers=self.headers
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
| ) as (read, write, _):
| ^
| File "/Users/lennonjesus/.local/share/uv/python/cpython-3.13.0-macos-aarch64-none/lib/python3.13/contextlib.py", line 235, in __aexit__
| await self.gen.athrow(value)
| File "/Users/lennonjesus/Projetos/MPRJ/notebookllama/.venv/lib/python3.13/site-packages/mcp/client/streamable_http.py", line 437, in streamablehttp_client
| async with anyio.create_task_group() as tg:
| ~~~~~~~~~~~~~~~~~~~~~~~^^
| File "/Users/lennonjesus/Projetos/MPRJ/notebookllama/.venv/lib/python3.13/site-packages/anyio/_backends/_asyncio.py", line 772, in __aexit__
| raise BaseExceptionGroup(
| "unhandled errors in a TaskGroup", self._exceptions
| ) from None
| ExceptionGroup: unhandled errors in a TaskGroup (1 sub-exception)
+-+---------------- 1 ----------------
| Exception Group Traceback (most recent call last):
| File "/Users/lennonjesus/Projetos/MPRJ/notebookllama/.venv/lib/python3.13/site-packages/mcp/client/streamable_http.py", line 461, in streamablehttp_client
| yield (
| ...<3 lines>...
| )
| File "/Users/lennonjesus/Projetos/MPRJ/notebookllama/.venv/lib/python3.13/site-packages/llama_index/tools/mcp/client.py", line 228, in _run_session
| async with ClientSession(
| ~~~~~~~~~~~~~^
| read,
| ^^^^^
| ...<2 lines>...
| sampling_callback=self.sampling_callback,
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
| ) as session:
| ^
| File "/Users/lennonjesus/Projetos/MPRJ/notebookllama/.venv/lib/python3.13/site-packages/mcp/shared/session.py", line 218, in __aexit__
| return await self._task_group.__aexit__(exc_type, exc_val, exc_tb)
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
| File "/Users/lennonjesus/Projetos/MPRJ/notebookllama/.venv/lib/python3.13/site-packages/anyio/_backends/_asyncio.py", line 772, in __aexit__
| raise BaseExceptionGroup(
| "unhandled errors in a TaskGroup", self._exceptions
| ) from None
| ExceptionGroup: unhandled errors in a TaskGroup (1 sub-exception)
+-+---------------- 1 ----------------
| Traceback (most recent call last):
| File "/Users/lennonjesus/Projetos/MPRJ/notebookllama/.venv/lib/python3.13/site-packages/anyio/streams/memory.py", line 111, in receive
| return self.receive_nowait()
| ~~~~~~~~~~~~~~~~~~~^^
| File "/Users/lennonjesus/Projetos/MPRJ/notebookllama/.venv/lib/python3.13/site-packages/anyio/streams/memory.py", line 106, in receive_nowait
| raise WouldBlock
| anyio.WouldBlock
|
| During handling of the above exception, another exception occurred:
|
| Traceback (most recent call last):
| File "/Users/lennonjesus/Projetos/MPRJ/notebookllama/.venv/lib/python3.13/site-packages/anyio/_core/_tasks.py", line 115, in fail_after
| yield cancel_scope
| File "/Users/lennonjesus/Projetos/MPRJ/notebookllama/.venv/lib/python3.13/site-packages/mcp/shared/session.py", line 272, in send_request
| response_or_error = await response_stream_reader.receive()
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
| File "/Users/lennonjesus/Projetos/MPRJ/notebookllama/.venv/lib/python3.13/site-packages/anyio/streams/memory.py", line 119, in receive
| await receive_event.wait()
| File "/Users/lennonjesus/Projetos/MPRJ/notebookllama/.venv/lib/python3.13/site-packages/anyio/_backends/_asyncio.py", line 1774, in wait
| await self._event.wait()
| File "/Users/lennonjesus/.local/share/uv/python/cpython-3.13.0-macos-aarch64-none/lib/python3.13/asyncio/locks.py", line 213, in wait
| await fut
| asyncio.exceptions.CancelledError: Cancelled by cancel scope 11b050940
|
| During handling of the above exception, another exception occurred:
|
| Traceback (most recent call last):
| File "/Users/lennonjesus/Projetos/MPRJ/notebookllama/.venv/lib/python3.13/site-packages/mcp/shared/session.py", line 271, in send_request
| with anyio.fail_after(timeout):
| ~~~~~~~~~~~~~~~~^^^^^^^^^
| File "/Users/lennonjesus/.local/share/uv/python/cpython-3.13.0-macos-aarch64-none/lib/python3.13/contextlib.py", line 162, in __exit__
| self.gen.throw(value)
| ~~~~~~~~~~~~~~^^^^^^^
| File "/Users/lennonjesus/Projetos/MPRJ/notebookllama/.venv/lib/python3.13/site-packages/anyio/_core/_tasks.py", line 118, in fail_after
| raise TimeoutError
| TimeoutError
|
| During handling of the above exception, another exception occurred:
|
| Traceback (most recent call last):
| File "/Users/lennonjesus/Projetos/MPRJ/notebookllama/.venv/lib/python3.13/site-packages/llama_index/tools/mcp/client.py", line 235, in _run_session
| yield session
| File "/Users/lennonjesus/Projetos/MPRJ/notebookllama/.venv/lib/python3.13/site-packages/llama_index/tools/mcp/client.py", line 298, in call_tool
| return await session.call_tool(
| ^^^^^^^^^^^^^^^^^^^^^^^^
| tool_name, arguments=arguments, progress_callback=progress_callback
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
| )
| ^
| File "/Users/lennonjesus/Projetos/MPRJ/notebookllama/.venv/lib/python3.13/site-packages/mcp/client/session.py", line 264, in call_tool
| return await self.send_request(
| ^^^^^^^^^^^^^^^^^^^^^^^^
| ...<12 lines>...
| )
| ^
| File "/Users/lennonjesus/Projetos/MPRJ/notebookllama/.venv/lib/python3.13/site-packages/mcp/shared/session.py", line 274, in send_request
| raise McpError(
| ...<8 lines>...
| )
| mcp.shared.exceptions.McpError: Timed out while waiting for response to ClientRequest. Waited 30.0 seconds.
+------------------------------------
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/Users/lennonjesus/.local/share/uv/python/cpython-3.13.0-macos-aarch64-none/lib/python3.13/asyncio/events.py", line 89, in _run
self._context.run(self._callback, *self._args)
~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/lennonjesus/Projetos/MPRJ/notebookllama/.venv/lib/python3.13/site-packages/llama_index_instrumentation/dispatcher.py", line 290, in handle_future_result
raise exception
File "/Users/lennonjesus/Projetos/MPRJ/notebookllama/.venv/lib/python3.13/site-packages/workflows/workflow.py", line 416, in _run_workflow
raise exception_raised
File "/Users/lennonjesus/Projetos/MPRJ/notebookllama/.venv/lib/python3.13/site-packages/workflows/context/context.py", line 696, in _step_worker
raise WorkflowRuntimeError(
f"Error in step '{name}': {e!s}"
) from e
workflows.errors.WorkflowRuntimeError: Error in step 'extract_file_data': unhandled errors in a TaskGroup (1 sub-exception)
Overriding of current TracerProvider is not allowed
Other details
OS: macOS 15.5 Build 24F74 / Mac mini Apple Silicon M1:
uv version: uv 0.7.20 (251420396 2025-07-09)
streamlit version: Streamlit, version 1.46.1
fastmcp version: 2.9.2
llama-index-workflows version: