Comment 6 for bug 374170

mere user writes:

> Debugger entered--Lisp error: (error "No matching files!") signal(error ("No matching files!")) error("No matching files!") vm-mime-attach-files-in-directory("~/Desktop/" "Agenda-for-visiting+student.pdf") call-interactively(vm-mime-attach-files-in-directory nil nil)

The doc string for vm-mime-attach-files-in-directory says that the
second argument is a regexp. So, the + is getting interpreted as a
regular expression operator. It should have still found a match. But
I leave it to you figure it out from here on.

Cheers,
Uday

PS Somehow, you managed to send this message with all the lines
squished into one!