Crash on Mac

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   QtCore                        	0x000000010023fec8 QMetaObject::cast(QObject*) const + 24
1   libProjectExplorer_debug.dylib	0x000000010a503bfc ProjectExplorer::ITaskHandler* qobject_cast<ProjectExplorer::ITaskHandler*>(QObject*) + 44 (qobject.h:380)
2   libProjectExplorer_debug.dylib	0x000000010a4fac06 ProjectExplorer::Internal::handler(QAction*) + 70 (taskwindow.cpp:314)
3   libProjectExplorer_debug.dylib	0x000000010a4fa53b ProjectExplorer::Internal::TaskWindow::currentChanged(QModelIndex const&) + 315 (taskwindow.cpp:413)
4   libProjectExplorer_debug.dylib	0x000000010a65d8dd ProjectExplorer::Internal::TaskWindow::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) + 493 (moc_taskwindow.cpp:94)
5   QtCore                        	0x00000001002511ee QMetaObject::activate(QObject*, QMetaObject const*, int, void**) + 1566
6   QtGui                         	0x0000000100a5682d QItemSelectionModel::currentChanged(QModelIndex const&, QModelIndex const&) + 45
7   QtGui                         	0x0000000100a5695e QItemSelectionModel::setCurrentIndex(QModelIndex const&, QFlags<QItemSelectionModel::SelectionFlag>) + 142
8   QtGui                         	0x00000001009fbf16 QAbstractItemView::mousePressEvent(QMouseEvent*) + 1158
9   QtGui                         	0x00000001005554e0 QWidget::event(QEvent*) + 2816
10  QtGui                         	0x00000001008e48ec QFrame::event(QEvent*) + 44
11  QtGui                         	0x0000000100970bc7 QAbstractScrollArea::viewportEvent(QEvent*) + 23
12  QtGui                         	0x0000000100a05ccb QAbstractItemView::viewportEvent(QEvent*) + 427
13  QtGui                         	0x0000000100972f50 QAbstractScrollAreaFilter::eventFilter(QObject*, QEvent*) + 48
14  QtCore                        	0x0000000100238cb7 QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) + 151
15  QtGui                         	0x00000001004f89be QApplicationPrivate::notify_helper(QObject*, QEvent*) + 142
16  QtGui                         	0x00000001004ff590 QApplication::notify(QObject*, QEvent*) + 2384
17  QtCore                        	0x000000010023920c QCoreApplication::notifyInternal(QObject*, QEvent*) + 124
18  QtGui                         	0x00000001004fcfdd QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) + 333
19  QtGui                         	0x00000001004acacb qt_mac_handleMouseEvent(NSEvent*, QEvent::Type, Qt::MouseButton, QWidget*, bool) + 763
20  com.apple.AppKit              	0x00007fff8788e53e -[NSWindow sendEvent:] + 6853
21  QtGui                         	0x00000001004a1bb7 -[QCocoaWindow sendEvent:] + 87
22  com.apple.AppKit              	0x00007fff8788a674 -[NSApplication sendEvent:] + 5761
23  QtGui                         	0x00000001004a6bf4 -[QNSApplication sendEvent:] + 84
24  com.apple.AppKit              	0x00007fff877a024a -[NSApplication run] + 636
25  QtGui                         	0x00000001004b1a80 QEventDispatcherMac::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) + 1824
26  QtCore                        	0x0000000100238114 QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) + 68
27  QtCore                        	0x00000001002384c4 QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) + 324
28  QtCore                        	0x000000010023abac QCoreApplication::exec() + 188
29  org.qt-project.qtcreator      	0x000000010000b3c3 main + 12371 (main.cpp:516)
30  org.qt-project.qtcreator      	0x0000000100004e84 start + 52