Thanks. It works. BTW, I have another question. (May I continue here ?)
Previously (indico 0.99) following event notification mail was sent when a new event was created. It was convenient. After updating to indico 2.0, we do not receive this mail. How can we configure to receive event notification mail in indico 2.0 ?
(sample of event notification mail in indico 0.99
Subject: New conference in indico (2720)
Date: Fri, 19 Jan 2018 09:20:21 +0900 (JST)
From: indico@hostname
To: indico@rhostname
_Category_
Workshops and Meetings
_Title_
Pre-DIS EIC Workshop
_Speaker/Chair_
_Room_
_Description_
_Creator_
Foo Bar (nnn)
_Date_
2018-04-15 08:00:00+09:00 -> 2018-04-15 18:00:00+09:00
_Access_
https://hostname/indico/conferenceDisplay.py?confId=xxxx