QT creator don't show the files

QT creator 4.5.2 on ubuntu 18.4 don’t show the files of project
i am fighting with QT for 2 hour and didi all the forum trick
did you do some test ?

“OpenFrameworks 0.10.0 has been tested with Qt Creator 4.6.0 and 4.6.1, we recomend to use 4.6.1 later versions might have different steps to follow or not work as expected.” via https://openframeworks.cc/setup/qtcreator/

4.5.2 sounds old to me, and it is not listed among the tested&supported versions, I would try a newer version of QT. I am working with 4.7.1 and everything works fine