Error while reinstalling on previous Siduction

[bad_aptitude]

[language=english][/language]
Installing over previous Siduction (dual boot with Windows)
Near the end of the installation process the following error message.
"
The package manager could not make changes to the installed system.The command

apt-get —purge -q -y remove calamares ^ff-**-livesettings setpassword

returned error code 100.
"
I then reformatted the root partition from ext4 to btrfs but got the same error after trying to install.

[bad_aptitude]

Solved ... Sort of....

Using Devil's suggestion for a similar installation problem I used the bleeding edge test version of the live iso at https://testbuilds.siduction.org/.
The installation was successful in as much as it completed and I could log in to my newly installed environment.

The Problem: there is no tool bar or application launcher.
Interestingly this applied to both the test Live Iso and to my new installed system.

Since this appears to be related to the Plasma 6 update I think I will move my current issue to the Update Warnings section.