@lisali yeah, don't bother the error at startup ( this is already fixed when we will switch to Qt5.12 ).
if your a lazy boy like me, i would definitly go with clickable ide qtcreator as it gives you good code navigation and completion if the project is well build.
You have test/debug/help facilities, preview for desktop ( like the clickable desktop command )
Of course not super friendly first time regarding UI and some features missing.
If i find some times i will post a quick intro, did something hacky few months ago :
https://m.youtube.com/watch?v=CCHL_tYDVL0
I should Archive my ut-qtcreator repo 😉