QOpenGLBuffer not found

[ThuyKhanh]

Hello there,
I cloned this project into my PC, i opened this project with Qt creator 8.0.2 but I meet the issue as image below
Could you help me to resolve the project:
https://www.dropbox.com/s/n96oyi5qlfuz5lq/Untitled.png?dl=0

[8Observer8]

I think because this example was written using Qt5. Qt6 has moved OpenGL stuff into a separate module called opengl. Add it to the .pro file: QT += opengl and add lib: win32: LIBS += -lopengl32

[ThuyKhanh]

Hello, tried 2 solutions:

1. i added QT += opengl into underlay.pro, win32: LIBS += -lopengl32 into lib.pri
   2.I added QT += quick opengl LIBS += -lopengl32 into underlay.pro
   But the problem has still occurred

[8Observer8]

Maybe this example in Qt6 + QML will help you: https://doc.qt.io/qt-6/qtquick-scenegraph-openglunderqml-example.html Scroll to the very bottom of the page to download it.