It's just because the output text of the 7zip program in the repository has changed, causing ark to not recognize it and therefore unable to view or decompress.
The patch I mentioned at #8 is enough for this issue. I have tested it with 23.08.5-0ubuntu5
The patch at https:/ /bugs.kde. org/show_ bug.cgi? id=468240# c13 is for libarchive plugin, but even without it, ark can directly execute 7zip program to read and decompress 7z files.
It's just because the output text of the 7zip program in the repository has changed, causing ark to not recognize it and therefore unable to view or decompress.
The patch I mentioned at #8 is enough for this issue. I have tested it with 23.08.5-0ubuntu5