I've a strange problem with muon package manager.
For a few days I've been trying to install packages (umlet for example) without success.
When I try to install anything muon says that it cant find the packages to install.
muon says for example, that it can't find the package "http://archive.ubuntu.com/ubuntu/pool/main/libj/libjaxp1.3-java/libjaxp1.3-java_1.3.05-2ubuntu3_all.deb", despite the fact, that it does exist!
I did a KDE upgrade, I reinstalled MUON, cleared the
/var/lib/apt/lists folder - nothing helps.
Today I decided to install umlet with the help of APT; and look: it works!
How can I fix MUON?