update-manager crashed with InvalidURL in _set_hostport()

[damdam]

Binary package hint: update-manager

When I want to update jaunty, synaptic or command line ap-get update can not download files, in french:

"W: Impossible de récupérer http://fr.archive.ubuntu.com/ubuntu/dists/jaunty/Release.gpg Ne parvient pas à résoudre « http »,

ProblemType: Crash
Architecture: amd64
DistroRelease: Ubuntu 9.04
ExecutablePath: /usr/bin/update-manager
InterpreterPath: /usr/bin/python2.6
NonfreeKernelModules: nvidia
Package: update-manager 1:0.111.1
PackageArchitecture: all
ProcCmdline: /usr/bin/python2.6 /usr/bin/update-manager
ProcEnviron:
 PATH=(custom, user)
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
PythonArgs: ['/usr/bin/update-manager']
SourcePackage: update-manager
Title: update-manager crashed with InvalidURL in _set_hostport()
Uname: Linux 2.6.28-11-generic x86_64
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[damdam (damien-connetable)]

resolved:
in the gnome interface, the proxy has been changed without my intervention.
Now it is OK