I've tries sudo apt install qtcreator and menu / preferences / add/remove software - search qtcreator, check qtcreator, apply
both seem to install qtcreator ok. But it can't find any qt kit.
which qmake is in /usr/bin and is a softlink to qtchooser but when I Add it as a kit, it says
The qmake executable /usr/lib/qt5/bin/qmake could not be added: qmake "/usr/lib/qt5/bin/qmake" is not an executable.
is there something further I need to sudo apt install ? qtcreator seems to have several libqt5*5 libraries that are pulled in as dependencies and are already there...