I used katoolin to install some updated qt5 softwares. After I removed the links from the sources.list file everything was okay. I uninstalled the qt5-default then. Today when I tried to install qt5-default(because I needed to use it) it
Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: qt5-default : Depends: qtbase5-dev but it is not going to be installed E: Unable to correct problems, you have held broken packages.
How should I fix this? When I am trying to install qtbase it is aying it can not be downloaded. It was working all fine before but now it is corrupted somehow. How can I fix this?