crash when I press CTRL+V to paste
<stack>
<frame level="2" function="wxStackWalker::Walk(unsigned int)" offset="00000032"/>
<frame level="3" function="wxDebugReport::AddContext(wxDebugReport::Context)" offset="00000e83"/>
<frame level="4" function="wxDebugReport::AddAll(wxDebugReport::Context)" offset="00000013"/>
<frame level="5"/>
<frame level="6" function="wxFatalSignalHandler" offset="00000026"/>
<frame level="7"/>
<frame level="8"/>
<frame level="9" function="wxEvtHandler::ProcessEvent(wxEvent&)" offset="00000067"/>
<frame level="10" function="wxEvtHandler::ProcessEvent(wxEvent&)" offset="00000067"/>
<frame level="11" function="wxEvtHandler::ProcessEvent(wxEvent&)" offset="00000067"/>
<frame level="12" function="wxEvtHandler::ProcessEvent(wxEvent&)" offset="00000067"/>
<frame level="13" function="wxEvtHandler::ProcessEvent(wxEvent&)" offset="00000067"/>
<frame level="14" function="wxEvtHandler::ProcessEvent(wxEvent&)" offset="00000067"/>
<frame level="15" function="wxEvtHandler::ProcessEvent(wxEvent&)" offset="00000067"/>
<frame level="16" function="wxEvtHandler::ProcessEvent(wxEvent&)" offset="00000067"/>
<frame level="17" function="wxEvtHandler::ProcessEvent(wxEvent&)" offset="00000067"/>
<frame level="18" function="wxEvtHandler::ProcessEvent(wxEvent&)" offset="00000067"/>
<frame level="19" function="wxEvtHandler::ProcessEvent(wxEvent&)" offset="00000067"/>
<frame level="20" function="wxEvtHandler::ProcessEvent(wxEvent&)" offset="00000067"/>
<frame level="21" function="wxEvtHandler::ProcessEvent(wxEvent&)" offset="00000067"/>
<frame level="22" function="wxEvtHandler::ProcessEvent(wxEvent&)" offset="00000067"/>
<frame level="23" function="wxEvtHandler::ProcessEvent(wxEvent&)" offset="00000067"/>
<frame level="24" function="wxEvtHandler::ProcessEvent(wxEvent&)" offset="00000067"/>
<frame level="25" function="wxEvtHandler::ProcessEvent(wxEvent&)" offset="00000067"/>
<frame level="26" function="wxEvtHandler::ProcessEvent(wxEvent&)" offset="00000067"/>
<frame level="27" function="wxEvtHandler::ProcessEvent(wxEvent&)" offset="00000067"/>
<frame level="28" function="wxEvtHandler::ProcessEvent(wxEvent&)" offset="00000067"/>
<frame level="29" function="wxWindowBase::TryParent(wxEvent&)" offset="0000006a"/>
<frame level="30" function="wxEvtHandler::ProcessEvent(wxEvent&)" offset="0000007d"/>
<frame level="31" function="wxWindowBase::TryParent(wxEvent&)" offset="0000006a"/>
<frame level="32" function="wxEvtHandler::ProcessEvent(wxEvent&)" offset="0000007d"/>
<frame level="33" function="wxWindowBase::TryParent(wxEvent&)" offset="0000006a"/>
<frame level="34" function="wxEvtHandler::ProcessEvent(wxEvent&)" offset="0000007d"/>
<frame level="35" function="wxWindowBase::TryParent(wxEvent&)" offset="0000006a"/>
<frame level="36" function="wxEvtHandler::ProcessEvent(wxEvent&)" offset="0000007d"/>
<frame level="37" function="wxGenericTreeCtrl::SendDeleteEvent(wxGenericTreeItem*)" offset="00000049"/>
<frame level="38" function="wxGenericTreeItem::DeleteChildren(wxGenericTreeCtrl*)" offset="0000004d"/>
<frame level="39" function="wxGenericTreeItem::DeleteChildren(wxGenericTreeCtrl*)" offset="0000005d"/>
<frame level="40" function="wxGenericTreeItem::DeleteChildren(wxGenericTreeCtrl*)" offset="0000005d"/>
<frame level="41" function="wxGenericTreeItem::DeleteChildren(wxGenericTreeCtrl*)" offset="0000005d"/>
<frame level="42" function="wxGenericTreeCtrl::Delete(wxTreeItemId const&)" offset="00000114"/>
<frame level="43" function="wxGenericTreeCtrl::DeleteAllItems()" offset="00000040"/>
<frame level="44" function="ClassBrowserBuilderThread::BuildTree()" offset="000000b4"/>
<frame level="45" function="ClassBrowserBuilderThread::Entry()" offset="0000001d"/>
<frame level="46" function="wxThreadInternal::PthreadStart(wxThread*)" offset="0000016f"/>
<frame level="47" function="wxPthreadStart" offset="0000001c"/>
</stack>
