Problem installing KOceanSaver

[Bumpalot]

Am using Kubuntu 15.04

Trying to Install KOceanSaver screensaver :
apt-get install build-essential kdebase-workspace-dev libqt4-opengl-dev
Result:
Package kdebase-workspace-dev 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: Unable to locate package apt-get
E: Unable to locate package install
E: Package 'kdebase-workspace-dev' has no installation candidate
Package kdebase-workspace-dev 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 'kdebase-workspace-dev' has no installation candidate

This worked OK on Kubuntu 14.10

Any ideas?

[claydoh]

I'm guessing, without searching for the package on packages.ubuntu.com, that this kde4 library no longer exists

Sent from my LG G4