QML module not found - Unknown module(s) in QT: quick

[RF_Eink]

Hello guys, im new to Qt and im trying to develop a project using Qt Quick but im facing a problem:

Also in "General Messages" appears this error too: "Project ERROR: Unknown module(s) in QT: quick"

I tried to add the path: /usr/lib/x86_64-linux-gnu/qt5/qml on QML_IMPORT_PATH = of the .pro file but it didnt solved the problem.

Im using Qt Creator 4.5.2 (Based on Qt 5.9.5)
Ubuntu 18

Thank you

[sierdzio]

If it compiles and runs, then just ignore it.