composer.airflow_1_samples.bq_copy_across_locations_test: test_dag failed

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---

commit: dd6ff76
buildURL: Build Status, Sponge
status: failed

Test output

Traceback (most recent call last):
  File "/workspace/composer/airflow_1_samples/conftest.py", line 36, in airflow_database
    airflow.utils.db.resetdb(rbac=None)  # this command will change in Airflow 2.0
  File "/workspace/composer/airflow_1_samples/.nox/py-3-6/lib/python3.6/site-packages/airflow/utils/db.py", line 397, in resetdb
    from airflow.models.serialized_dag import SerializedDagModel  # noqa: F401
  File "/workspace/composer/airflow_1_samples/.nox/py-3-6/lib/python3.6/site-packages/airflow/models/serialized_dag.py", line 35, in 
    from airflow.serialization.serialized_objects import SerializedDAG
  File "/workspace/composer/airflow_1_samples/.nox/py-3-6/lib/python3.6/site-packages/airflow/serialization/serialized_objects.py", line 40, in 
    from airflow.www.utils import get_python_source
  File "/workspace/composer/airflow_1_samples/.nox/py-3-6/lib/python3.6/site-packages/airflow/www/utils.py", line 36, in 
    from wtforms.compat import text_type
ModuleNotFoundError: No module named 'wtforms.compat'