The "Import from Ical" feature is not importing anything. Strace shows that when I activate that menu item, the following happens: access("/usr/u/nogin/.calendar", F_OK) = 0 stat64("/tmp", {st_mode=S_IFDIR|S_ISVTX|0777, st_size=8192, ...}) = 0 lstat64("/tmp/filetKFA5V", 0xbfffe9d0) = -1 ENOENT (No such file or directory) access("/usr/u/nogin/.kde/bin/ical2vcal", R_OK) = -1 ENOENT (No such file or directory) access("/usr/bin/ical2vcal", R_OK) = 0 stat64("/usr/bin/ical2vcal", {st_mode=S_IFREG|0755, st_size=10870, ...}) = 0 [pid 8109] execve("/bin/sh", ["sh", "-c", "/usr/bin/ical2vcal/tmp/filetKFA5"...], [/* 45 vars */]) = 0 It seems that the problem here is just that korganizer forgets a space between ical2vcal and the tmp file name.
This bug is also listed in the KDE bug database, see http://bugs.kde.org/db/13/13491.html It is marked as fixed there.
*** This bug has been marked as a duplicate of 11875 ***
This bug is not really a duplicate of 11875. 11875 is about ical2vcal not always doing the right thing and this one is about korganizer not calling ical2vcal correctly. But anyway, according to http://bugs.kde.org/db/13/13491.html this bug is already fixed, so it's not that important how this bug is marked.