Qt cockpit example .qrc file missing

When I run the example on qt creator I get this error:

qrc:/qml/cockpit/main.qml: No such file or directory

But when I set the source like this, it works: 

viewer.setSource(QUrl("file:///C:/Qt/Examples/Qt-6.8.0/graphs/2d/cockpit/qml/cockpit/main.qml"));