dlampsi commented on issue #8247: Serialized DAG trigger via UI error - AttributeError: 'NoneType' object has no attribute 'create_dagrun' URL: https://github.com/apache/airflow/issues/8247#issuecomment-612672073 > Did you put the following env variables on the Scheduler POD too: I'm using `.env` file in each container (docker-compose file example above in issue body). Here `.env` file content: ``` POSTGRES_HOST=postgres POSTGRES_PORT=5432 POSTGRES_DB=airflow POSTGRES_USER=airflow POSTGRES_PASSWORD=airflow AIRFLOW__CORE__FERNET_KEY=Nk09IXzSw5GGYOUcbey4xxIzeKViJKxq47MqKFPRuik= AIRFLOW__CORE__COLORED_CONSOLE_LOG=False AIRFLOW__CORE__LOAD_EXAMPLES=False AIRFLOW__CORE__EXECUTOR=CeleryExecutor AIRFLOW__WEBSERVER__BASE_URL=http://127.0.0.1:8080 AIRFLOW__WEBSERVER__ACCESS_LOGFILE=/usr/local/airflow/webserver_access.log AIRFLOW__WEBSERVER__RBAC=True RBAC_USER_REGISTRATION_ROLE=Admin RBAC_LDAP_SERVER=... RBAC_LDAP_SEARCH=... RBAC_LDAP_BIND_USER=... RBAC_LDAP_BIND_PASSWORD=... RBAC_LDAP_UID_FIELD=sAMAccountName # Dag Serialization AIRFLOW__CORE__STORE_SERIALIZED_DAGS=True AIRFLOW__CORE__MIN_SERIALIZED_DAG_UPDATE_INTERVAL=30 AIRFLOW__CORE__STORE_DAG_CODE=True ```
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