Hi,

I’m having a blind qml crash. I have been commenting the code on/off all day 
long and I can’t seem to find a pattern, something I know exactly what it is. 
What is the procedure to find such problems? 

When I manage to catch a crash with the debugger this is what I can find:

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   org.qt-project.QtQml                0x000000010ca9a0a4 
QQmlBinding::write(QQmlPropertyData const&, QV4::Value const&, bool, 
QFlags<QQmlPropertyPrivate::WriteFlag>) + 596
1   org.qt-project.QtQml                0x000000010ca99bf8 
QQmlBinding::update(QFlags<QQmlPropertyPrivate::WriteFlag>) + 952
2   org.qt-project.QtQml                0x000000010caa9b30 
QQmlObjectCreator::finalize(QQmlInstantiationInterrupt&) + 272
3   org.qt-project.QtQml                0x000000010ca34fa0 
QQmlIncubatorPrivate::incubate(QQmlInstantiationInterrupt&) + 1376
4   org.qt-project.QtQml                0x000000010ca35d31 
QQmlIncubationController::incubateFor(int) + 129
5   org.qt-project.QtQuick              0x000000010bed2f05 
QQuickWindowIncubationController::incubate() + 69
6   org.qt-project.QtCore               0x000000010d066670 
QObject::event(QEvent*) + 48
7   org.qt-project.QtCore               0x000000010d03a80f 
QCoreApplicationPrivate::notify_helper(QObject*, QEvent*) + 303
8   org.qt-project.QtCore               0x000000010d03a46d 
QCoreApplication::notify(QObject*, QEvent*) + 45
9   org.qt-project.QtCore               0x000000010d03a3f4 
QCoreApplication::notifyInternal2(QObject*, QEvent*) + 164
10  org.qt-project.QtCore               0x000000010d091662 
QTimerInfoList::activateTimers() + 1266
11  libqcocoa.dylib                     0x000000010f933772 
QCocoaEventDispatcherPrivate::activateTimersSourceCallback(void*) + 18
12  com.apple.CoreFoundation            0x00007fff981d6881 
__CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
13  com.apple.CoreFoundation            0x00007fff981b5fbc 
__CFRunLoopDoSources0 + 556
14  com.apple.CoreFoundation            0x00007fff981b54df __CFRunLoopRun + 927
15  com.apple.CoreFoundation            0x00007fff981b4ed8 CFRunLoopRunSpecific 
+ 296
16  com.apple.HIToolbox                 0x00007fff8a7af935 
RunCurrentEventLoopInMode + 235
17  com.apple.HIToolbox                 0x00007fff8a7af76f 
ReceiveNextEventCommon + 432
18  com.apple.HIToolbox                 0x00007fff8a7af5af 
_BlockUntilNextEventMatchingListInModeWithFilter + 71
19  com.apple.AppKit                    0x00007fff970f3df6 _DPSNextEvent + 1067
20  com.apple.AppKit                    0x00007fff970f3226 -[NSApplication 
_nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 454
21  com.apple.AppKit                    0x00007fff970e7d80 -[NSApplication run] 
+ 682
22  libqcocoa.dylib                     0x000000010f93437f 
QCocoaEventDispatcher::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) + 
2191
23  org.qt-project.QtCore               0x000000010d0367a1 
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) + 401
24  org.qt-project.QtCore               0x000000010d03aa65 
QCoreApplication::exec() + 341
25  com.imaginando.LK                   0x000000010b416317 main + 1879 
(main.cpp:249)
26  com.imaginando.LK                   0x000000010b3bccb4 start + 52

Regards,

Nuno
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