ubuntu 14.04 live-build missing live-config-upstart package

On my Ubuntu 14.04.1 installation, I'm trying to build a live image using the live-boot packages.
The live image is built right out of the box like this:
sudo lb clean --all
sudo lb build
Then the following parts seems to go ok:
P: Running debootstrap (download-only)...
P: Running debootstrap...
P: Saving bootstrap stage to cache...
P: Begin unmounting filesystems...
P: Saving caches...
After this, it downloads packages, unpacks and configure them.
Then after a while, I get this:
E: Unable to locate package live-config-upstart
P: Begin unmounting filesystems...
P: Saving caches...

So I tried to install it with apt-get install
then I get the exact same error.
Checking Launchpad.net for the package gives this:
https://launchpad.net/ubuntu/trusty/+package/live-config-upstart
So it seems there was a package once.
clicking any of the links on that page gives the status of the package as "Deleted".

So how am I supposed to build a live image if the packages required to build one out of the box doesn't exist?
Does anyone have a tips on how to fix it?