Dolphin cannot connect to FTP servers, "Unknown Error"

[Nick Moeck]

Binary package hint: dolphin

After the last update in Maverick, dolphin stopped being able to connect to FTP servers, showing "Unknown Error". Running dolphin from a terminal provides no additional information when trying to connect to an FTP server. The same behavior occurs when attempting to use the fish:// protocol as well.

dolphin -v:
Qt: 4.7.0
KDE Development Platform: 4.5.1 (KDE 4.5.1)
Dolphin: 1.5

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: dolphin 4:4.5.1-0ubuntu2
ProcVersionSignature: Ubuntu 2.6.35-22.32-generic 2.6.35.4
Uname: Linux 2.6.35-22-generic i686
Architecture: i386
Date: Fri Sep 17 20:19:44 2010
InstallationMedia: Kubuntu 10.10 "Maverick Meerkat" - Alpha i386 (20100803.4)
ProcEnviron:
 LANGUAGE=
 LANG=en_US.UTF-8
 SHELL=/bin/zsh
SourcePackage: kdebase