Connection was not found, even Environment Variable is set.

I'm sure I set the environment variable correctly by executing:
export SENTRY_DSN=[MY_SENTRY]

I got this error:

{sentry_hook.py:107}` WARNING - Connection was not found, defaulting to environment variable.

I also tried manually setting up the connection with conn_id = sentry_dsn and host=dsn in the Web UI. But it doesn't catch the errors to Sentry.

[mikeclarke]

When you add the sentry_dsn connection, does the warning go away? Which airflow version are you running?

apache-airflow==1.10.3