qtchooser not found

I am running lmbr_waf.bat configure and the script finishes. However, if I look closely I can see this message: “Checking for program qtchooser : not found”.

Why am I experiencing this error? How does it affect my build? What is Qt?

If you want to compile those projects, run dev/Tools/LmbrSetup/Win/SetupAssistant.exe and in the “Get started” section select all the options to Compile (that you want really). It’ll install the dependencies including Qt, which is a GUI framework that the Lumberyard Editor depends on.