Add oracle datasource to redash10

Need help.
Trying to add oracle data source to redash 10.
following this guide Add oracle as data souce to redash - #5 by DerBeton
using redash/redash:10.0.0b50363 image and
oracel instant client
after runnig docker-compose run -rm server create_db have an exception:

Traceback (most recent call last):
File “/app/”, line 6, in
from redash.cli import manager
File “/app/redash/”, line 15, in
from .query_runner import import_query_runners
File “/app/redash/query_runner/”, line 16, in
from redash.utils.requests_session import requests_or_advocate, requests_session, UnacceptableAddressException
File “/app/redash/utils/”, line 3, in
from advocate.exceptions import UnacceptableAddressException
ModuleNotFoundError: No module named ‘advocate’

Thanks in advance.

You need to run docker-compose build first.