this is not a bug actually,
it happens if devstack unable to install some packages like in my case it was enable to get liberasurecode-dev which led into that issue,
you to edit /etc/apt/source.list to enable install from trusty-backport (if ubuntu server) or xyz backports in case of other server
that fixed the issue for me.
this is not a bug actually,
it happens if devstack unable to install some packages like in my case it was enable to get liberasurecode-dev which led into that issue,
you to edit /etc/apt/ source. list to enable install from trusty-backport (if ubuntu server) or xyz backports in case of other server
that fixed the issue for me.