# Pastebin zkXlW8ki
Hey folks, I have a question: when I built nova-libvirt container image with tools/build.py , I met an error in libvirt-bin installation(I used ubuntu-based image)
the error message as follows: 

INFO:__main__:nova-libvirt:Setting up cgmanager (0.24-0ubuntu7.5) ...
INFO:__main__:nova-libvirt:invoke-rc.d: unknown initscript, /etc/init.d/cgmanager not found.
INFO:__main__:nova-libvirt:
INFO:__main__:nova-compute:Selecting previously unselected package liblttng-ust0:amd64.
INFO:__main__:nova-compute:Preparing to unpack .../liblttng-ust0_2.6.2-2~cloud2_amd64.deb ...
INFO:__main__:nova-compute:Unpacking liblttng-ust0:amd64 (2.6.2-2~cloud2) ...
INFO:__main__:nova-libvirt:dpkg: error processing package cgmanager (--configure):
INFO:__main__:nova-libvirt: subprocess installed post-installation script returned error exit status 100
INFO:__main__:nova-libvirt: