Comment 9 for bug 1448631

I was editing vm details within virt-manager of a running win7_x64 machine. I added 250gb, virtio bus, qcow2, and cache none. I rebooted windows and this error appeared. I already have qemu-kvm installed. OS is Debian 8 amd64.

Error launching details: 'NoneType' object has no attribute 'set_label'

Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/engine.py", line 610, in _show_vm_helper
    details.show()
  File "/usr/share/virt-manager/virtManager/details.py", line 569, in show
    self.refresh_vm_state()
  File "/usr/share/virt-manager/virtManager/details.py", line 1417, in refresh_vm_state
    self.change_run_text(vm.hasSavedImage())
  File "/usr/share/virt-manager/virtManager/details.py", line 1400, in change_run_text
    self.widget("details-menu-run").get_child().set_label(text)
AttributeError: 'NoneType' object has no attribute 'set_label'

root@vm1:~# cat /etc/debian_version
jessie/sid
root@vm1:~# cat /etc/os-release
NAME="Ubuntu"
VERSION="14.04.4 LTS, Trusty Tahr"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 14.04.4 LTS"
VERSION_ID="14.04"
HOME_URL="http://www.ubuntu.com/"
SUPPORT_URL="http://help.ubuntu.com/"
BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"
root@vm1:~# dpkg -l | grep qemu
ii ipxe-qemu 1.0.0+git-20131111.c3d1e78-2ubuntu1.1 all PXE boot firmware - ROM images for qemu
ii qemu-keymaps 2.0.0+dfsg-2ubuntu1.24 all QEMU keyboard maps
ii qemu-kvm 2.0.0+dfsg-2ubuntu1.24 amd64 QEMU Full virtualization
ii qemu-system-common 2.0.0+dfsg-2ubuntu1.24 amd64 QEMU full system emulation binaries (common files)
ii qemu-system-x86 2.0.0+dfsg-2ubuntu1.24 amd64 QEMU full system emulation binaries (x86)
ii qemu-utils 2.0.0+dfsg-2ubuntu1.24 amd64 QEMU utilities
root@vm1:~# dpkg -l | grep libvirt
ii libvirt-bin 1.2.2-0ubuntu13.1.17 amd64 programs for the libvirt library
ii libvirt0 1.2.2-0ubuntu13.1.17 amd64 library for interfacing with different virtualization systems
ii python-libvirt 1.2.2-0ubuntu2 amd64 libvirt Python bindings
root@vm1:~# dpkg -l | grep virt-manager
ii virt-manager 0.9.5-1ubuntu3 all desktop application for managing virtual machines
root@vm1:~#