由于debian 9上的这个命令行,我从GitHub安装了Apache airflow 1.9: pip install git+https://github.com/apache/incubator-airflow.git@v1-9-stable
但是,我在airflow initdbFernet造成的错误中,你知道如何解决这个问题吗？
INFO [alembic.runtime.migration] Running upgrade 947454bf1dff -> d2ae31099d61, Increase text size for MySQL (not relevant for other DBs' text types)
[2017-12-27 17:19:24,586] {models.py:643} ERROR - Failed to load fernet while encrypting value, using non-encrypted value.
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/airflow/models.py", line 639, in set_extra
fernet = get_fernet()
File "/usr/local/lib/python2.7/dist-packages/airflow/models.py", line 103, in get_fernet
raise AirflowException('Failed to import Fernet, it may not be installed')
AirflowException: Failed to import Fernet, …airflow ×1