title: Can't add kits and can't choose Qt version in Qt Creator
body: <p>I tried to work with Qt Creator, but when I start a new project, I have to create a new kit. But in the kit menu, I can't choose a Qt version nor a debugger, my only option is 'none'. It doesn't work for any device type. </p>
  
  <p>I have the option to add a Qt version though, but which folder, file or executable I have to open?</p>