@SimpleY i ve got same problem as your, try to go to preferences->Qt Quick->QML/JS editing-> QML Language server and remove tick on Tun on (leave all unchecked) it worked for me.

@gabodev for me it just makes it hard to read and not pretty in any way. Its just a weakness for me. But its old horse. let us not beat it more :) The editor looks so slick so maybe its meant to be :)

@Spirrwell Yep, that would be a good option indeed :)

I can not get how to get it to work;/ The question is why default config do not work? It should be ready to work just after install...

@Yaseen Well there are many samples and I stumbled on this one a day where I typed Widget in the search field to see all samples for Desktop / not Qt Quick . :)