I tried this on the 20120627 i386 and amd64 Ubuntu live system (I think that's exactly the same image as you did), in kvm. First right after booting into the live desktop, and a second time after "sudo apt-get update". I also tried it on my workstation (current Quantal amd64).
In each of those I ran "ubuntu-bug casper", and clicked Send; I got the upload progress dialog, and was sent to Firefox. In no case did I get that error message. By the looks of your screenshot you are also using some virtual machine like KVM, or using Ethernet? So I'm puzzled now what could be different. The main thing that comes to my mind is: Are you using a proxy on your host machine (i. e. not in the live system guest)? I'm afraid I gave you the wrong file for debugging this more closely, sorry about that. Can you please boot the live system again, run these two commands in a terminal: wget http://people.canonical.com/~pitti/tmp/ui.py sudo cp ui.py /usr/lib/python3/dist-packages/apport/ and then reproduce the situation again? If you then get an apport crash file in /var/crash/, please attach it. If you see any output from that ubuntu-bug command in the terminal, please copy&paste it here. Thank you! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1013334 Title: slice indices must be integers or None or have an __index__ method To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1013334/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs