Created attachment 103751 [details] picture and error messages Bonjour, I have this problem : Discover says 0 installed elements (translated from the french 0 éléments installés) It occurred after an update which left some packages uninstalled. The attachment list the errors messages and give the picture.
It looks like an issue on your distribution. I suggest you contact them. I'd also suggest you to take a look at whether you test on the native applications, see if "apt-get dist-upgrade" has any similar output.