.../dev$ sh ./00-PreReqs.sh
Reading package lists... Done
Building dependency tree
Reading state information... Done
Note, selecting 'libglew1.5-dev' instead of 'libglew-dev'
Package python-celementtree is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'python-celementtree' has no installation candidate
.../dev$