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stelterlab opened this issue May 11, 2025 · 3 comments
Open

langgraph.errors.GraphRecursionError: Recursion limit of 25 reached without hitting a stop condition. #55

stelterlab opened this issue May 11, 2025 · 3 comments

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@stelterlab
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I got this error while running a research. Found a limit set in src/workflow.py set to 100. Doesn't seem to get used.

Used version of yesterday (69d6e16) with OpenAI as LLM provider and Tavily AI as Search Engine.

My request was: "How to create a read only user in OpenStack who can see every resource in every project and every domain?"

`ERROR: Exception in ASGI application
Traceback (most recent call last):
File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/responses.py", line 270, in call
await wrap(partial(self.listen_for_disconnect, receive))
File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/responses.py", line 266, in wrap
await func()
File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/responses.py", line 234, in listen_for_disconnect
message = await receive()
^^^^^^^^^^^^^^^
File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/uvicorn/protocols/http/h11_impl.py", line 531, in receive
await self.message_event.wait()
File "/Users/cosinus/.local/share/uv/python/cpython-3.12.8-macos-aarch64-none/lib/python3.12/asyncio/locks.py", line 212, in wait
await fut
asyncio.exceptions.CancelledError: Cancelled by cancel scope 10a9cee40

During handling of the above exception, another exception occurred:

  • Exception Group Traceback (most recent call last):
    | File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/_utils.py", line 76, in collapse_excgroups
    | yield
    | File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/responses.py", line 263, in call
    | async with anyio.create_task_group() as task_group:
    | ^^^^^^^^^^^^^^^^^^^^^^^^^
    | File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/anyio/_backends/_asyncio.py", line 767, in aexit
    | raise BaseExceptionGroup(
    | ExceptionGroup: unhandled errors in a TaskGroup (1 sub-exception)
    +-+---------------- 1 ----------------
    | Traceback (most recent call last):
    | File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/uvicorn/protocols/http/h11_impl.py", line 403, in run_asgi
    | result = await app( # type: ignore[func-returns-value]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    | File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/uvicorn/middleware/proxy_headers.py", line 60, in call
    | return await self.app(scope, receive, send)
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    | File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/fastapi/applications.py", line 1054, in call
    | await super().call(scope, receive, send)
    | File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/applications.py", line 112, in call
    | await self.middleware_stack(scope, receive, send)
    | File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/middleware/errors.py", line 187, in call
    | raise exc
    | File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/middleware/errors.py", line 165, in call
    | await self.app(scope, receive, _send)
    | File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/middleware/cors.py", line 93, in call
    | await self.simple_response(scope, receive, send, request_headers=headers)
    | File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/middleware/cors.py", line 144, in simple_response
    | await self.app(scope, receive, send)
    | File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/middleware/exceptions.py", line 62, in call
    | await wrap_app_handling_exceptions(self.app, conn)(scope, receive, send)
    | File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/_exception_handler.py", line 53, in wrapped_app
    | raise exc
    | File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/_exception_handler.py", line 42, in wrapped_app
    | await app(scope, receive, sender)
    | File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/routing.py", line 714, in call
    | await self.middleware_stack(scope, receive, send)
    | File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/routing.py", line 734, in app
    | await route.handle(scope, receive, send)
    | File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/routing.py", line 288, in handle
    | await self.app(scope, receive, send)
    | File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/routing.py", line 76, in app
    | await wrap_app_handling_exceptions(app, request)(scope, receive, send)
    | File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/_exception_handler.py", line 53, in wrapped_app
    | raise exc
    | File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/_exception_handler.py", line 42, in wrapped_app
    | await app(scope, receive, sender)
    | File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/routing.py", line 74, in app
    | await response(scope, receive, send)
    | File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/responses.py", line 262, in call
    | with collapse_excgroups():
    | ^^^^^^^^^^^^^^^^^^^^
    | File "/Users/cosinus/.local/share/uv/python/cpython-3.12.8-macos-aarch64-none/lib/python3.12/contextlib.py", line 158, in exit
    | self.gen.throw(value)
    | File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/_utils.py", line 82, in collapse_excgroups
    | raise exc
    | File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/responses.py", line 266, in wrap
    | await func()
    | File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/responses.py", line 246, in stream_response
    | async for chunk in self.body_iterator:
    | File "/Users/cosinus/src/deer-flow/src/server/app.py", line 98, in _astream_workflow_generator
    | async for agent, _, event_data in graph.astream(
    | File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/langgraph/pregel/init.py", line 2305, in astream
    | async for _ in runner.atick(
    | File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/langgraph/pregel/runner.py", line 527, in atick
    | _panic_or_proceed(
    | File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/langgraph/pregel/runner.py", line 619, in _panic_or_proceed
    | raise exc
    | File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/langgraph/pregel/retry.py", line 128, in arun_with_retry
    | return await task.proc.ainvoke(task.input, config)
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    | File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/langgraph/utils/runnable.py", line 583, in ainvoke
    | input = await step.ainvoke(input, config, **kwargs)
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    | File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/langgraph/utils/runnable.py", line 371, in ainvoke
    | ret = await asyncio.create_task(coro, context=context)
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    | File "/Users/cosinus/src/deer-flow/src/graph/nodes.py", line 420, in researcher_node
    | return await _setup_and_execute_agent_step(
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    | File "/Users/cosinus/src/deer-flow/src/graph/nodes.py", line 412, in _setup_and_execute_agent_step
    | return await _execute_agent_step(state, default_agent, agent_type)
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    | File "/Users/cosinus/src/deer-flow/src/graph/nodes.py", line 331, in _execute_agent_step
    | result = await agent.ainvoke(input=agent_input)
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    | File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/langgraph/pregel/init.py", line 2420, in ainvoke
    | async for chunk in self.astream(
    | File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/langgraph/pregel/init.py", line 2327, in astream
    | raise GraphRecursionError(msg)
    | langgraph.errors.GraphRecursionError: Recursion limit of 25 reached without hitting a stop condition. You can increase the limit by setting the recursion_limit config key.
    | For troubleshooting, visit: https://python.langchain.com/docs/troubleshooting/errors/GRAPH_RECURSION_LIMIT
    | During task with name 'researcher' and id '52c1115d-7c8c-9b68-249f-25927e097f6b'
    +------------------------------------

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/uvicorn/protocols/http/h11_impl.py", line 403, in run_asgi
result = await app( # type: ignore[func-returns-value]
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/uvicorn/middleware/proxy_headers.py", line 60, in call
return await self.app(scope, receive, send)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/fastapi/applications.py", line 1054, in call
await super().call(scope, receive, send)
File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/applications.py", line 112, in call
await self.middleware_stack(scope, receive, send)
File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/middleware/errors.py", line 187, in call
raise exc
File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/middleware/errors.py", line 165, in call
await self.app(scope, receive, _send)
File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/middleware/cors.py", line 93, in call
await self.simple_response(scope, receive, send, request_headers=headers)
File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/middleware/cors.py", line 144, in simple_response
await self.app(scope, receive, send)
File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/middleware/exceptions.py", line 62, in call
await wrap_app_handling_exceptions(self.app, conn)(scope, receive, send)
File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/_exception_handler.py", line 53, in wrapped_app
raise exc
File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/_exception_handler.py", line 42, in wrapped_app
await app(scope, receive, sender)
File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/routing.py", line 714, in call
await self.middleware_stack(scope, receive, send)
File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/routing.py", line 734, in app
await route.handle(scope, receive, send)
File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/routing.py", line 288, in handle
await self.app(scope, receive, send)
File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/routing.py", line 76, in app
await wrap_app_handling_exceptions(app, request)(scope, receive, send)
File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/_exception_handler.py", line 53, in wrapped_app
raise exc
File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/_exception_handler.py", line 42, in wrapped_app
await app(scope, receive, sender)
File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/routing.py", line 74, in app
await response(scope, receive, send)
File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/responses.py", line 262, in call
with collapse_excgroups():
^^^^^^^^^^^^^^^^^^^^
File "/Users/cosinus/.local/share/uv/python/cpython-3.12.8-macos-aarch64-none/lib/python3.12/contextlib.py", line 158, in exit
self.gen.throw(value)
File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/_utils.py", line 82, in collapse_excgroups
raise exc
File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/responses.py", line 266, in wrap
await func()
File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/starlette/responses.py", line 246, in stream_response
async for chunk in self.body_iterator:
File "/Users/cosinus/src/deer-flow/src/server/app.py", line 98, in _astream_workflow_generator
async for agent, _, event_data in graph.astream(
File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/langgraph/pregel/init.py", line 2305, in astream
async for _ in runner.atick(
File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/langgraph/pregel/runner.py", line 527, in atick
_panic_or_proceed(
File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/langgraph/pregel/runner.py", line 619, in _panic_or_proceed
raise exc
File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/langgraph/pregel/retry.py", line 128, in arun_with_retry
return await task.proc.ainvoke(task.input, config)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/langgraph/utils/runnable.py", line 583, in ainvoke
input = await step.ainvoke(input, config, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/langgraph/utils/runnable.py", line 371, in ainvoke
ret = await asyncio.create_task(coro, context=context)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/cosinus/src/deer-flow/src/graph/nodes.py", line 420, in researcher_node
return await _setup_and_execute_agent_step(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/cosinus/src/deer-flow/src/graph/nodes.py", line 412, in _setup_and_execute_agent_step
return await _execute_agent_step(state, default_agent, agent_type)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/cosinus/src/deer-flow/src/graph/nodes.py", line 331, in _execute_agent_step
result = await agent.ainvoke(input=agent_input)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/langgraph/pregel/init.py", line 2420, in ainvoke
async for chunk in self.astream(
File "/Users/cosinus/src/deer-flow/.venv/lib/python3.12/site-packages/langgraph/pregel/init.py", line 2327, in astream
raise GraphRecursionError(msg)
langgraph.errors.GraphRecursionError: Recursion limit of 25 reached without hitting a stop condition. You can increase the limit by setting the recursion_limit config key.
For troubleshooting, visit: https://python.langchain.com/docs/troubleshooting/errors/GRAPH_RECURSION_LIMIT
During task with name 'researcher' and id '52c1115d-7c8c-9b68-249f-25927e097f6b'`
@fxnie
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fxnie commented May 12, 2025

same

Image

@biosafetylvl5
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biosafetylvl5 commented May 13, 2025 •
edited
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Same 😢

Image
This also occurred for me (like @stelterlab) while handling another exception.

Using the latest commit as of now, with docker.

@changqingla changqingla mentioned this issue May 14, 2025
Merged
@changqingla
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#138

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4 participants
@biosafetylvl5 @changqingla @stelterlab @fxnie