I tested on a trusty box, with usb-creator-{common,gtk} 0.2.56.3 I can erase the ntfs usbstick without popup error.
However there is one thing to mention, after the erasing it prompt "There is not enough free space for this image" and the "Make Startup Disk" button is inactivated. After another erasing now the button is activated and I can burn the ISO image successfully. Anyway I think the issue is properly fixed, I'll update the tags for trusty. ** Tags removed: verification-needed ** Tags added: verification-done -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1380041 Title: Erasing NTFS formatted flash raises AttributeError: 'NoneType' object has no attribute 'get_cached_property' To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/usb-creator/+bug/1380041/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs