I don't understand the above error. When I try to start a drill session on my current buffer, the message
org-drill: invalid match tag "" appears.
I tired to customize the variable
org-drill-match in the customization menu:
I tired to set it to
nil, to a tag string like this:
"\:tag\:" but it doesn't change anything, where
<tag> is the tag I choose.
I also don't find the string
"Invalid match tag" in the
How can I reset the
org-drill-match variable so that the drill session works again. Or is there another reason for this error, maybe a badly formed tag?