Program received signal SIGSEGV, Segmentation fault. 0x69d0738d in QtContacts::QContactId::toString() const () from /usr/lib/libQt5Contacts.so.5 (gdb) bt #0 0x69d0738d in QtContacts::QContactId::toString() const () from /usr/lib/libQt5Contacts.so.5 #1 0x69c9c0bf in ?? () from /usr/lib/libcontactcache-qt5.so.0 #2 0x69c9c9cc in SeasideCache::itemById(QtContacts::QContactId const&, bool) () from /usr/lib/libcontactcache-qt5.so.0 #3 0x69da7859 in SeasideFilteredModel::personByRow (this=0x50418a30, row=-1) at seasidefilteredmodel.cpp:521 #4 0x69db949c in SeasideFilteredModel::qt_static_metacall (_o=0x50418a30, _c=QMetaObject::InvokeMetaMethod, _id=16, _a=0x77ffdcd0) at moc_seasidefilteredmodel.cpp:273 #5 0x69db999e in SeasideFilteredModel::qt_metacall (this=0x50418a30, _c=QMetaObject::InvokeMetaMethod, _id=16, _a=0x77ffdcd0) at moc_seasidefilteredmodel.cpp:386 #6 0x6efb757f in QMetaObject::metacall(QObject*, QMetaObject::Call, int, void**) () from /usr/lib/libQt5Core.so.5 #7 0x6fa19bb9 in ?? () from /usr/lib/libQt5Qml.so.5