It seems that the various methods of calendar integration have not been working well. The tutorial on worg is outdated and the function is now called
org-icalender-export-to-ics. However running this function on an
.org file gives me an
.ics file which does not have any entry:
PRODID:-//Xiang Ji//Emacs with Org mode//EN
I used to use
mobileorg to directly sync with Google Calendar on Android. However the project has long been out of maintenance and recently I haven't been able to sync any of my org files with
mobileorg at all, with various undecipherable errors occuring.
All I need is to sync those entries with
DEADLINE to my calendar so that I can also check on them when I'm on my cellphone.
There has been a similar question on Reddit but none of the solutions mentioned there have been able to achieve this end.