Task failing with AioSession.__init__() got an unexpected keyword argument 'conn_id' with xcombackend #62691
Description
Apache Airflow version
main (development)
If "Other Airflow 3 version" selected, which one?
No response
What happened?
Getting below error when running any example DAG on main
2026-03-02 14:47:47] INFO - DAG bundles loaded: dags-folder, example_dags
[2026-03-02 14:47:47] INFO - Filling up the DagBag from /opt/airflow/airflow-core/src/airflow/example_dags/example_xcom.py
[2026-03-02 14:47:48] ERROR - Exception rendering Jinja template for task 'bash_push', field 'bash_command'. Template: 'echo "bash_push demo" && echo "Manually set xcom value {{ ti.xcom_push(key="manually_pushed_value", value="manually_pushed_value") }}" && echo "value_by_return"'
TypeError: AioSession.__init__() got an unexpected keyword argument 'conn_id'
File "/opt/airflow/task-sdk/src/airflow/sdk/definitions/_internal/abstractoperator.py", line 325 in _do_render_template_fields
File "/opt/airflow/task-sdk/src/airflow/sdk/definitions/_internal/templater.py", line 185 in render_template
File "/opt/airflow/task-sdk/src/airflow/sdk/definitions/_internal/abstractoperator.py", line 286 in _render
File "/opt/airflow/task-sdk/src/airflow/sdk/definitions/_internal/templater.py", line 141 in _render
File "/opt/airflow/task-sdk/src/airflow/sdk/definitions/context.py", line 207 in render_template_to_string
File "/opt/airflow/task-sdk/src/airflow/sdk/definitions/context.py", line 197 in render_template
File "<template>", line 13 in root
File "/usr/python/lib/python3.10/site-packages/jinja2/sandbox.py", line 401 in call
File "/usr/python/lib/python3.10/site-packages/jinja2/runtime.py", line 303 in call
File "/opt/airflow/task-sdk/src/airflow/sdk/execution_time/task_runner.py", line 434 in xcom_push
File "/opt/airflow/task-sdk/src/airflow/sdk/execution_time/task_runner.py", line 676 in _xcom_push
File "/opt/airflow/task-sdk/src/airflow/sdk/bases/xcom.py", line 77 in set
File "/opt/airflow/providers/common/io/src/airflow/providers/common/io/xcom/backend.py", line 145 in serialize_value
File "/usr/python/lib/python3.10/site-packages/upath/extensions.py", line 245 in exists
File "/usr/python/lib/python3.10/site-packages/upath/core.py", line 1552 in exists
File "/usr/python/lib/python3.10/site-packages/fsspec/asyn.py", line 118 in wrapper
File "/usr/python/lib/python3.10/site-packages/fsspec/asyn.py", line 103 in sync
File "/usr/python/lib/python3.10/site-packages/fsspec/asyn.py", line 56 in _runner
File "/usr/python/lib/python3.10/site-packages/s3fs/core.py", line 1118 in _exists
File "/usr/python/lib/python3.10/site-packages/s3fs/core.py", line 1471 in _info
File "/usr/python/lib/python3.10/site-packages/s3fs/core.py", line 377 in _call_s3
File "/usr/python/lib/python3.10/site-packages/s3fs/core.py", line 560 in set_session
What you think should happen instead?
No response
How to reproduce
- start breeze on main
breeze start-airflow --executor CeleryExecutor --backend postgres --load-example-dags - set below env in init file in breeze
export AIRFLOW__CORE__XCOM_BACKEND=airflow.providers.common.io.xcom.backend.XComObjectStorageBackend
export AIRFLOW__COMMON_IO__XCOM_OBJECTSTORAGE_PATH=s3://aws_default@airflow-tutorial-data-rahul-new
export AIRFLOW__COMMON_IO__XCOM_OBJECTSTORAGE_THRESHOLD=0
- Try running any example dag
Operating System
Os
Versions of Apache Airflow Providers
No response
Deployment
Official Apache Airflow Helm Chart
Deployment details
No response
Anything else?
No response
Are you willing to submit PR?
- Yes I am willing to submit a PR!
Code of Conduct
- I agree to follow this project's Code of Conduct