I had the same issue, the problem was that the localized name of the "Downloads" folder contained non-ascii characters (Stažené). As workaround, move the .iso to /tmp or ~ (if that one is ascii-clean) and select it using the "other" button.
If it fails nevertheless , you are having another issue than me. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1273739 Title: usb-creator-gtk does not work: "Installation Failed" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/usb-creator/+bug/1273739/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs