Please describe the problem:
The error msgs list as follows:

"An error occurred while adding files to the archive."

7-Zip (A) 4.30 beta  Copyright (c) 1999-2005 Igor Pavlov  2005-11-18
p7zip Version 4.30 (locale=C,Utf16=off,HugeFiles=on)
Scanning


notes\mynotes.html:  WARNING: No more files                
notes\nmap_note.txt:  WARNING: No more files                
notes\quicknote1.txt:  WARNING: No more files                
...
----------------
WARNING: Cannot find 32 files

Steps to reproduce:
create a 7z-archive and add some direcotries into the archive.

Actual results:


Expected results:
file-roller should add directories and the files into 7z-archive

Does this happen every time?
yes

Other information:
I think this maybe becuase file-roller does not hander the directory separator correctly.