root@Hunter:~# apt install telegram-desktop 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: telegram-desktop : Depends: qtbase-abi-5-11-0 but it is not installable Recommends: fonts-open-sans but it is not going to be installed E: Unable to correct problems, you have held broken packages.
This is one example of Sid’s “unstable” nature: there are no guarantees that it contains a coherent set of packages. Qt5 is transitioning from
qtbase-abi-5-11-2, and all dependent packages, including
telegram-desktop, need to be rebuilt.
You should be able to install the package in a few days’ time.
Users of Sid should pay attention to the points raised in the unstable FAQ.