[ Error message ]gangserver@TCM73-U240816:~/app/doublecmd/qt6$ ./doublecmd./doublecmd: error while loading shared libraries: libQt6PrintSupport.so.6: cannot open shared object file: No such file or directory [ How to Fix the Error ] sudo apt updatesudo apt install libqt6printsupport6 If errors persist after installation, install the additional steps below.sudo apt install libqt6gui6 libqt6widge..