When Rar/Unrar facility not available:-

When Rar/Unrar facility not available:-

Solution:-                  
  1. Please follow the process as mentioned below:-
  2. If the initial “unrar x” command doesn’t work, the system needs to install the rar unrar facility.
  3. Use the following command (needs internet)

sudo apt install rar unrar
After that even if the problem is not resolved then please contact The CG support team.