#326 'Not implemented' error?

[horseman_uk]

I'm trying to 7z up a directory that is 220megs in size
and consisting of 10,358 files (it's a large web app
with associated .java and .class files). After
right-click 'Add to archive...' I fill in the details
using 7z on Fast mode. 7-zip seems to start getting the
directory structure cached but then suddenly stops and
exists with a requester saying 'Not implemented'. It
appears that I had accidentally left an archive with an
identical name in the target directory. I'm not sure
what 7-zip was trying to do (update the archive?) but
whatever it was, it's not implemented, apparently. ;o)

Richard.