#0  0x0000000000000000 in ?? ()
#1  0x00007ffff75865aa in QDialogButtonBoxPrivate::createButton (this=0xfbd900, sbutton=QDialogButtonBox::Cancel, doLayout=<optimized out>)
    at widgets/qdialogbuttonbox.cpp:411
#2  0x00007fffccca142a in QmlEditorWidgets::CustomColorDialog::CustomColorDialog(QWidget*) () from 
/usr/lib/qtcreator/plugins/QtProject/../../libQmlEditorWidgets.so.1
#3  0x00007fffccc96a70 in QmlEditorWidgets::ContextPaneWidget::colorDialog() () from /usr/lib/qtcreator/plugins/QtProject/../../libQmlEditorWidgets.so.1
#4  0x00007fffccc9809a in QmlEditorWidgets::ContextPaneWidget::ContextPaneWidget(QWidget*) () from 
/usr/lib/qtcreator/plugins/QtProject/../../libQmlEditorWidgets.so.1
#5  0x00007fffccf3f84f in ?? () from /usr/lib/qtcreator/plugins/QtProject/libQmlJSEditor.so
#6  0x00007fffccf40a1e in ?? () from /usr/lib/qtcreator/plugins/QtProject/libQmlJSEditor.so
#7  0x00007fffccf20fa3 in ?? () from /usr/lib/qtcreator/plugins/QtProject/libQmlJSEditor.so
#8  0x00007ffff7bc1ba6 in ExtensionSystem::Internal::PluginSpecPrivate::initializePlugin() () from /usr/bin/../lib/qtcreator/libExtensionSystem.so.1
#9  0x00007ffff7bbbf9c in ExtensionSystem::Internal::PluginManagerPrivate::loadPlugin(ExtensionSystem::PluginSpec*, ExtensionSystem::PluginSpec::State) ()
   from /usr/bin/../lib/qtcreator/libExtensionSystem.so.1
#10 0x00007ffff7bbc4b7 in ExtensionSystem::Internal::PluginManagerPrivate::loadPlugins() () from /usr/bin/../lib/qtcreator/libExtensionSystem.so.1
#11 0x000000000040966d in ?? ()
#12 0x00007ffff5761000 in __libc_start_main () from /usr/lib/libc.so.6
#13 0x000000000040a247 in ?? ()