ros-foxy installation issue

edit

When I tried to reinstall ros-foxy I'm getting this error. Pls help.

$ sudo apt install ros-foxy-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:
 ros-foxy-desktop : Depends: ros-foxy-joy but it is not going to be installed
                    Depends: ros-foxy-teleop-twist-joy but it is not going to be installed
E: Unable to correct problems, you have held broken packages.