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[Ephemera <>]

Anyone could help me on mesh_3_plugin loading error?
All built on Mesh_3 is right, but there was an exception that is not handled
when Mesh_3 was loading mesh_3_plugin. The calling stack where the interrupt
happened is described as the following pic. 
<http://cgal-discuss.949826.n4.nabble.com/file/n4656326/error.png> 
The codes in qobject.h are
template <class T>
inline T qobject_cast(QObject *object)
{
#if !defined(QT_NO_QOBJECT_CHECK)
   
reinterpret_cast<T>(object)->qt_check_for_QOBJECT_macro(*reinterpret_cast<T>(object));
#endif
   * return
static_cast<T>(reinterpret_cast<T>(object)->staticMetaObject.cast(object));*}

The codes in Polyhedron_demo_mesh_3_plugin.cpp are:
bool applicable() const {
    *return
qobject_cast<Scene_polyhedron_item*>(scene->item(scene->mainSelectionIndex()));*
 
}

The codes in Mainwindow.cpp are:
bool MainWindow::initPlugin(QObject* obj)
{
  QObjectList childs = this->children();
  Plugin_interface* plugin =
    qobject_cast<Plugin_interface*>(obj);
  if(plugin) {
    // Call plugin's init() method
   * plugin->init(this, this->scene, this);*
    Q_FOREACH(QAction* action, plugin->actions()) {
      // If action does not belong to the menus, add it to "Operations" menu
      if(!childs.contains(action)) {
        ui->menuOperations->addAction(action);
      }
      // Show and enable menu item
      addAction(action);
    }
    return true;
  }

The bold codes are interrupt point.




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