"Upgrade" my Ubuntu 20.04 to Ubuntu Studio

[mahesh]

Hello, I am trying to *upgrade" my Ubuntu 20.04 to Ubuntu Studio, but since that didn't work out, I'm simply installing all the Debian packages that should come with Ubuntu Studio from Synaptic. Now, every package I installed from https://wiki.debian.org/Multimedia so far gave me the same error message: E: cpl-plugin-muse-calib: installed cpl-plugin-muse-calib package post-installation script subprocess returned error exit status 1 I also tried to install and to config the very same plugin from the terminal, without any results: it enters an endless loop in which it tells me "that the package is being used by synaptic", eventhough synaptic is closed and I rebooted. Or it informs me that the "frontend is locked and removing the lock will cause system failure". Anyone has any idea of how to manage to finally install these plugins please? Thanks in advance for your help!