Task Group inialization error on lifespan and mounting on FastMcp

[MuazAshraf]

I am having issue on task group inialization, First I added the lifespan with session menager it work for some days but after some days it gives me this error then I directly mount it. and some days it works fine but same error after some days so I have to again change it to lifespan. is this issue is for me or anybody else is also facing. I guess now This will be correct!

import contextlib
from fastapi import FastAPI

Create a combined lifespan to manage all session managers

@contextlib.asynccontextmanager
async def lifespan(app: FastAPI):
async with contextlib.AsyncExitStack() as stack:
# Initialize all session managers

I placholders the name here.

    await stack.enter_async_context(1_mcp.session_manager.run())
    await stack.enter_async_context(2_mcp.session_manager.run())
    await stack.enter_async_context(3_mcp.session_manager.run())
    await stack.enter_async_context(4_mcp.session_manager.run())
    await stack.enter_async_context(5_mcp.session_manager.run())
    yield

Create FastAPI app with lifespan

app = FastAPI(lifespan=lifespan)

app.mount("/1", 1_mcp.streamable_http_app())
app.mount("/2", 2_mcp.streamable_http_app())
app.mount("/3", 3_mcp.streamable_http_app())
app.mount("/4", 4_mcp.streamable_http_app())
app.mount("/5", 5_mcp.streamable_http_app())