Thanks for your reply.
I looked at the error more closely:
It it caused when using the compass class (sensor api)
causes an error in the following context (constructor of Compass class):
Could it be that some changes were made in the use of the compass from 4.7.2 to 4.7.3?
Compass::Compass(QGraphicsPixmapItem *aItem, QGraphicsPixmapItem *aItem2, QGraphicsScene *Scene, double imageheight) :
m_compassImage(aItem), m_needleImage(aItem2), m_Scene(Scene), m_imageheight(imageheight)
if (m_rate_val > 0)
qDebug() << "Compasssensor setdatarate " << endl;
qDebug() << "Compasssensor didn't start!" << endl;