some plasmoids missing after upgrade to KDE 4.2.1

[Mark Greenwood]

Binary package hint: kdebase

Not sure if kdebase is the correct package.

Jaunty Alpha 4, updated daily up to today (March 5th 2009)

kdebase-plasma:
  Installed: 4:4.2.1-0ubuntu1
  Candidate: 4:4.2.1-0ubuntu1
  Version table:
 *** 4:4.2.1-0ubuntu1 0
        500 http://gb.archive.ubuntu.com jaunty/main Packages
        100 /var/lib/dpkg/status

After updating today to KDE 4.2.1, several plasma widgets I have been using no longer exist. They appear in the list when I choose 'Add Widgets' from the desktop cashew, but they appear as an 'unknown widget' on the desktop.

This missing widgets include:
Notes
LCD Weather Station
Life
Show Widget Dashboard
Konsole Profiles
Comic Strip
Binary Clock
Fifteen Puzzle
Calculator
News
RSSNow
Picture Frame

(These are the ones I've tried, there may be more, but many of the others do work, System Monitor and Folder View are definitely still OK).

To reproduce:
Choose 'Add Widgets' from the desktop cashew
Try to add one from the above list.