Current executable set to './bug.app' (x86_64). (lldb) process launch Process 71374 launched: '/Users/kbhend/Desktop/bug/bug.app/Contents/MacOS/bug' (x86_64) 2019-06-23 18:48:02.804220-0400 bug[71374:1673926] Attribute Qt::AA_ShareOpenGLContexts must be set before QCoreApplication is created. 2019-06-23 18:48:02.845980-0400 bug[71374:1673926] "/Users/kbhend/Desktop/bug" 2019-06-23 18:48:02.968969-0400 bug[71374:1674052] GVA info: preferred scaler idx 0 Process 71374 stopped * thread #1, name = 'CrBrowserMain', queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x8) frame #0: 0x0000000100170570 QtWidgets`QWidget::mapTo(QWidget const*, QPoint const&) const + 32 QtWidgets`QWidget::mapTo: -> 0x100170570 <+32>: movq 0x8(%rdi), %rdx 0x100170574 <+36>: movq 0x28(%rdi), %rdi 0x100170578 <+40>: addl 0x14(%rdi), %eax 0x10017057b <+43>: addl 0x18(%rdi), %ecx Target 0: (bug) stopped. (lldb) bt * thread #1, name = 'CrBrowserMain', queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x8) * frame #0: 0x0000000100170570 QtWidgets`QWidget::mapTo(QWidget const*, QPoint const&) const + 32 frame #1: 0x0000000100151b78 QtWidgets`___lldb_unnamed_symbol67$$QtWidgets + 328 frame #2: 0x00000001001520ea QtWidgets`___lldb_unnamed_symbol72$$QtWidgets + 410 frame #3: 0x0000000100156e66 QtWidgets`___lldb_unnamed_symbol99$$QtWidgets + 2998 frame #4: 0x0000000100185dad QtWidgets`QWidget::event(QEvent*) + 1645 frame #5: 0x0000000100149b9d QtWidgets`QApplicationPrivate::notify_helper(QObject*, QEvent*) + 269 frame #6: 0x000000010014afa2 QtWidgets`QApplication::notify(QObject*, QEvent*) + 594 frame #7: 0x000000010832e234 QtCore`QCoreApplication::notifyInternal2(QObject*, QEvent*) + 212 frame #8: 0x000000010832f46e QtCore`QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) + 878 frame #9: 0x000000010da3d499 libqcocoa.dylib`___lldb_unnamed_symbol632$$libqcocoa.dylib + 313 frame #10: 0x000000010da3dc00 libqcocoa.dylib`___lldb_unnamed_symbol644$$libqcocoa.dylib + 32 frame #11: 0x00007fff28e30d41 CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17 frame #12: 0x00007fff28eea75c CoreFoundation`__CFRunLoopDoSource0 + 108 frame #13: 0x00007fff28e137a0 CoreFoundation`__CFRunLoopDoSources0 + 208 frame #14: 0x00007fff28e12c1d CoreFoundation`__CFRunLoopRun + 1293 frame #15: 0x00007fff28e12483 CoreFoundation`CFRunLoopRunSpecific + 483 frame #16: 0x00007fff280fcd96 HIToolbox`RunCurrentEventLoopInMode + 286 frame #17: 0x00007fff280fcb06 HIToolbox`ReceiveNextEventCommon + 613 frame #18: 0x00007fff280fc884 HIToolbox`_BlockUntilNextEventMatchingListInModeWithFilter + 64 frame #19: 0x00007fff263aca73 AppKit`_DPSNextEvent + 2085 frame #20: 0x00007fff26b42e34 AppKit`-[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 3044 frame #21: 0x00007fff263a1885 AppKit`-[NSApplication run] + 764 frame #22: 0x000000010da3cb7b libqcocoa.dylib`___lldb_unnamed_symbol626$$libqcocoa.dylib + 2955 frame #23: 0x000000010832984f QtCore`QEventLoop::exec(QFlags) + 431 frame #24: 0x000000010832e842 QtCore`QCoreApplication::exec() + 130 frame #25: 0x0000000100005cf1 bug`main(argc=1, argv=0x00007ffeefbff9f8) at main.cpp:14 frame #26: 0x00007fff50d43015 libdyld.dylib`start + 1 frame #27: 0x00007fff50d43015 libdyld.dylib`start + 1