#0 0x00007ffff4727428 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:54 #1 0x00007ffff472902a in __GI_abort () at abort.c:89 #2 0x00007ffff471fbd7 in __assert_fail_base (fmt=, assertion=assertion@entry=0x7ffff42d3be8 "(index >= 0) && (index < this->getNumChildren())", file=file@entry=0x7ffff42d3b82 "SoGroup.cpp", line=line@entry=292, function=function@entry=0x7ffff42d3f80 "virtual SoNode* SoGroup::getChild(int) const") at assert.c:92 #3 0x00007ffff471fc82 in __GI___assert_fail ( assertion=0x7ffff42d3be8 "(index >= 0) && (index < this->getNumChildren())", file=0x7ffff42d3b82 "SoGroup.cpp", line=292, function=0x7ffff42d3f80 "virtual SoNode* SoGroup::getChild(int) const") at assert.c:101 #4 0x00007ffff3e01f98 in ?? () from /usr/lib/x86_64-linux-gnu/libCoin.so.80 #5 0x00007ffff405b151 in SoGroup::getChild(int) const () from /usr/lib/x86_64-linux-gnu/libCoin.so.80 #6 0x00007fff56ec4c62 in SketcherGui::ViewProviderSketch::drawConstraintIcons() () from /usr/lib/freecad-daily/lib/SketcherGui.so #7 0x00007fff56eccf23 in SketcherGui::ViewProviderSketch::draw(bool, bool) () from /usr/lib/freecad-daily/lib/SketcherGui.so #8 0x00007fff56ed79a7 in SketcherGui::ViewProviderSketch::updateData(App::Property const*) () from /usr/lib/freecad-daily/lib/SketcherGui.so #9 0x00007ffff734b32f in Gui::Document::slotChangedObject(App::DocumentObject const&, App::Property const&) () from /usr/lib/freecad-daily/lib/libFreeCADGui.so #10 0x00007ffff6c5bed3 in boost::signal2, int, std::less, boost::function >::operator()(App::DocumentObject const&, App::Property const&) () from /usr/lib/freecad-daily/lib/libFreeCADApp.so #11 0x00007ffff6c71861 in App::DocumentObject::onChanged(App::Property const*) () from /usr/lib/freecad-daily/lib/libFreeCADApp.so #12 0x00007fffb84209bf in Part::Feature::onChanged(App::Property const*) () from /usr/lib/freecad-daily/lib/Part.so #13 0x00007fff57327739 in Sketcher::SketchObject::onChanged(App::Property const*) () from /usr/lib/freecad-daily/lib/Sketcher.so #14 0x00007ffff6ced869 in App::Property::hasSetValue() () from /usr/lib/freecad-daily/lib/libFreeCADApp.so #15 0x00007fff5730c0e2 in Sketcher::SketchObject::transferConstraints(int, Sketcher::PointPos, int, Sketcher::PointPos) () from /usr/lib/freecad-daily/lib/Sketcher.so #16 0x00007fff573188f6 in Sketcher::SketchObject::delGeometry(int, bool) () from /usr/lib/freecad-daily/lib/Sketcher.so #17 0x00007fff573843ea in Sketcher::SketchObjectPy::delGeometry(_object*) () from /usr/lib/freecad-daily/lib/Sketcher.so #18 0x00007fff573848e7 in Sketcher::SketchObjectPy::staticCallback_delGeometry(_object*, _object*) () from /usr/lib/freecad-daily/lib/Sketcher.so #19 0x00007ffff62ed961 in PyEval_EvalFrameEx () from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0 #20 0x00007ffff642304c in PyEval_EvalCodeEx () from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0 #21 0x00007ffff62e4d99 in PyEval_EvalCode () from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0 #22 0x00007ffff635f1e6 in PyRun_StringFlags () from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0 #23 0x00007ffff68757b6 in Base::InterpreterSingleton::runString[abi:cxx11](char const*) () from /usr/lib/freecad-daily/lib/libFreeCADBase.so #24 0x00007ffff738b370 in Gui::Command::doCommand(Gui::Command::DoCmd_Type, char const*, ...) () from /usr/lib/freecad-daily/lib/libFreeCADGui.so #25 0x00007fff56ed7e9e in SketcherGui::ViewProviderSketch::onDelete(std::vector, std::allocator >, std::allocator, std::allocator > > > const&) () from /usr/lib/freecad-daily/lib/SketcherGui.so #26 0x00007ffff7399307 in StdCmdDelete::activated(int) () from /usr/lib/freecad-daily/lib/libFreeCADGui.so #27 0x00007ffff738f6cc in Gui::Command::invoke(int) () from /usr/lib/freecad-daily/lib/libFreeCADGui.so #28 0x00007ffff51f3010 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 #29 0x00007ffff5705d62 in QAction::triggered(bool) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 #30 0x00007ffff57070b3 in QAction::activate(QAction::ActionEvent) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 #31 0x00007ffff570760c in QAction::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 #32 0x00007ffff570bfdc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 #33 0x00007ffff5712f16 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 #34 0x00007ffff736a484 in Gui::GUIApplication::notify(QObject*, QEvent*) () from /usr/lib/freecad-daily/lib/libFreeCADGui.so #35 0x00007ffff51de90d in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 #36 0x00007ffff5742f18 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 #37 0x00007ffff5743107 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 #38 0x00007ffff57142ee in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 #39 0x00007ffff736a484 in Gui::GUIApplication::notify(QObject*, QEvent*) () from /usr/lib/freecad-daily/lib/libFreeCADGui.so #40 0x00007ffff51de90d in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 #41 0x00007ffff57b66b3 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 #42 0x00007ffff57b6bc2 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 #43 0x00007ffff578ed21 in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 #44 0x00007ffff57b9542 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 #45 0x00007fffede48197 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #46 0x00007fffede483f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #47 0x00007fffede4849c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #48 0x00007ffff520f2ae in QEventDispatcherGlib::processEvents(QFlags) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 #49 0x00007ffff57b9616 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 #50 0x00007ffff51dd18f in QEventLoop::processEvents(QFlags) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 #51 0x00007ffff51dd4f5 in QEventLoop::exec(QFlags) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 #52 0x00007ffff51e34b9 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 #53 0x00007ffff7323260 in Gui::Application::runApplication() () from /usr/lib/freecad-daily/lib/libFreeCADGui.so #54 0x0000000000403834 in main ()