vatsrahul1001 commented on issue #48630:
URL: https://github.com/apache/airflow/issues/48630#issuecomment-2770572746
```
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File
"/usr/local/lib/python3.9/site-packages/uvicorn/protocols/http/httptools_impl.py",
line 409, in run_asgi
result = await app( # type: ignore[func-returns-value]
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/gzip.py", line 29,
in __call__
await responder(scope, receive, send)
File
"/usr/local/lib/python3.9/site-packages/starlette/middleware/gzip.py", line
126, in __call__
await super().__call__(scope, receive, send)
File
"/usr/local/lib/python3.9/site-packages/starlette/middleware/gzip.py", line 46,
in __call__
await self.app(scope, receive, self.send_with_compression)
File
"/usr/local/lib/python3.9/site-packages/starlette/middleware/cors.py", line 85,
in __call__
await self.app(scope, receive, send)
File
"/usr/local/lib/python3.9/site-packages/starlette/middleware/base.py", line
178, in __call__
recv_stream.close()
File "/usr/local/lib/python3.9/contextlib.py", line 137, in __exit__
self.gen.throw(typ, value, traceback)
File "/usr/local/lib/python3.9/site-packages/starlette/_utils.py", line
82, in collapse_excgroups
raise exc
File
"/usr/local/lib/python3.9/site-packages/starlette/middleware/base.py", line
175, in __call__
response = await self.dispatch_func(request, call_next)
File
"/opt/airflow/airflow-core/src/airflow/api_fastapi/core_api/middleware.py",
line 28, in dispatch
response = await call_next(request)
File
"/usr/local/lib/python3.9/site-packages/starlette/middleware/base.py", line
153, in call_next
raise app_exc
File
"/usr/local/lib/python3.9/site-packages/starlette/middleware/base.py", line
140, in coro
await self.app(scope, receive_or_disconnect, send_no_error)
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
73, in app
response = await f(request)
File "/usr/local/lib/python3.9/site-packages/fastapi/routing.py", line
301, in app
raw_response = await run_endpoint_function(
File "/usr/local/lib/python3.9/site-packages/fastapi/routing.py", line
214, in run_endpoint_function
return await run_in_threadpool(dependant.call, **values)
File "/usr/local/lib/python3.9/site-packages/starlette/concurrency.py",
line 37, in run_in_threadpool
return await anyio.to_thread.run_sync(func)
File "/usr/local/lib/python3.9/site-packages/anyio/to_thread.py", line 56,
in run_sync
return await get_async_backend().run_sync_in_worker_thread(
File "/usr/local/lib/python3.9/site-packages/anyio/_backends/_asyncio.py",
line 2470, in run_sync_in_worker_thread
return await future
File "/usr/local/lib/python3.9/site-packages/anyio/_backends/_asyncio.py",
line 967, in run
result = context.run(func, *args)
File
"/opt/airflow/airflow-core/src/airflow/api_fastapi/core_api/routes/ui/grid.py",
line 162, in grid_data
run_dag = tis[0].dag_version.serialized_dag.dag
AttributeError: 'NoneType' object has no attribute 'serialized_dag'
```
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