TypeError: Expected a Runnable, callable or dict. Instead got an unsupported type: <class 'module'> in unified container

[wasim786700]

Description:
I am attempting to run the OpenManus backend using docker-compose on Windows 10 with Docker Desktop. The unified container starts, but when the UI (or any client) attempts to interact with the /api/chat/stream endpoint, the unified container logs a TypeError and the application fails to process the request.
Steps to Reproduce:

Clone the OpenManus repository.
Ensure Docker Desktop is running.
Navigate to the OpenManus directory in Command Prompt.
Run docker-compose up --build.
Observe the unified container starting successfully.
Attempt to interact with the OpenManus backend (e.g., via the UI or by making a POST request to /api/chat/stream).

Expected Behavior:
The OpenManus backend should process the request without a TypeError and provide a response.
Actual Behavior:
The unified container logs the following TypeError:

ERROR: Exception in ASGI application

• Exception Group Traceback (most recent call last):
  | File "/usr/local/lib/python3.9/site-packages/uvicorn/protocols/http/h11_impl.py", line 403, in run_asgi
  | result = await app( # type: ignore[func-returns-value]
  | File "/usr/local/lib/python3.9/site-packages/uvicorn/middleware/proxy_headers.py", line 60, in call
  | return await self.app(scope, receive, send )
  | File "/usr/local/lib/python3.9/site-packages/fastapi/applications.py", line 1054, in call
  | await super().call(scope, receive, send)
  | File "/usr/local/lib/python3.9/site-packages/starlette/applications.py", line 112, in call
  | await self.middleware_stack(scope, receive, send)
  | File "/usr/local/lib/python3.9/site-packages/starlette/middleware/errors.py", line 187, in call
  | raise exc
  | File "/usr/local/lib/python3.9/site-packages/starlette/middleware/errors.py", line 165, in call
  | await self.app(scope, receive, _send)
  | File "/usr/local/lib/python3.9/site-packages/starlette/middleware/cors.py", line 93, in call
  | await self.simple_response(scope, receive, send, request_headers=headers)
  | File "/usr/local/lib/python3.9/site-packages/starlette/middleware/cors.py", line 144, in simple_response
  | await self.app(scope, receive, send)
  | File "/usr/local/lib/python3.9/site-packages/starlette/middleware/exceptions.py", line 62, in call
  | await wrap_app_handling_exceptions(self.app, conn)(scope, receive, send)
  | File "/usr/local/lib/python3.9/site-packages/starlette/_exception_handler.py", line 53, in wrapped_app
  | raise exc
  | File "/usr/local/lib/python3.9/site-packages/starlette/_exception_handler.py", line 42, in wrapped_app
  | await app(scope, receive, sender)
  | File "/usr/local/lib/python3.9/site-packages/starlette/routing.py", line 714, in call
  | await self.middleware_stack(scope, receive, send)
  | File "/usr/local/lib/python3.9/site-packages/starlette/routing.py", line 734, in app
  | await route.handle(scope, receive, send)
  | File "/usr/local/lib/python3.9/site-packages/starlette/routing.py", line 288, in handle
  | await self.app(scope, receive, send)
  | File "/usr/local/lib/python3.9/site-packages/starlette/routing.py", line 76, in app
  | await wrap_app_handling_exceptions(app, request)(scope, receive, send)
  | File "/usr/local/lib/python3.9/site-packages/starlette/_exception_handler.py", line 53, in wrapped_app
  | raise exc
  | File "/usr/local/lib/python3.9/site-packages/starlette/_exception_handler.py", line 42, in wrapped_app
  | await app(scope, receive, sender)
  | File "/usr/local/lib/python3.9/site-packages/starlette/routing.py", line 74, in app
  | await response(scope, receive, send)
  | File "/usr/local/lib/python3.9/site-packages/sse_starlette/sse.py", line 251, in call
  | task_group.start_soon(
  | File "/usr/local/lib/python3.9/site-packages/anyio/_backends/_asyncio.py", line 772, in aexit
  | raise BaseExceptionGroup(
  | exceptiongroup.ExceptionGroup: unhandled errors in a TaskGroup (1 sub-exception)
  +-+---------------- 1 ----------------
  | Traceback (most recent call last):
  | File "/usr/local/lib/python3.9/site-packages/sse_starlette/sse.py", line 240, in cancel_on_finish
  | await coro()
  | File "/usr/local/lib/python3.9/site-packages/sse_starlette/sse.py", line 159, in _stream_response
  | async for data in self.body_iterator:
  | File "/app/src/server.py", line 57, in event_generator
  | async for event in run_agent_workflow(
  | File "/app/src/service/workflow_service.py", line 23, in run_agent_workflow
  | workflow = build_graph()
  | File "/app/src/workflow/graph.py", line 18, in build_graph
  | builder.add_node("coordinator", coordinator_node)
  | File "/usr/local/lib/python3.9/site-packages/langgraph/graph/state.py", line 436, in add_node
  | coerce_to_runnable(action, name=cast(str, node), trace=False),
  | File "/usr/local/lib/python3.9/site-packages/langgraph/utils/runnable.py", line 496, in coerce_to_runnable
  | raise TypeError(
  | TypeError: Expected a Runnable, callable or dict.Instead got an unsupported type: <class 'module'>

Environment:

Operating System: Windows 10
Docker Desktop Version: (4.42.1 (196648))
OpenManus Repository: https://github.com/henryalps/OpenManus (latest main branch )

Troubleshooting Steps Already Taken:

Ensured Docker Desktop is running.
Verified start.sh has Unix line endings (manually replaced the file).
Modified src/workflow/graph.py to directly import node functions (e.g., from src.agents.nodes.coordinator_node import coordinator_node).
Modified src/workflow/graph.py to wrap node functions in lambda when adding them to the graph (e.g., builder.add_node("coordinator", lambda state: coordinator_node(state))).
Rebuilt Docker images multiple times using docker-compose up --build after each change.

Additional Context:
This error consistently occurs when the langgraph library attempts to coerce_to_runnable the coordinator_node (and potentially other nodes) within the build_graph function, indicating it's receiving a module object instead of a callable function, despite explicit import and lambda wrapping attempts.