Spell.cpp: In member function ‘uint64 Spell::handle_delayed(uint64)’: Spell.cpp:1281: error: no match for ‘operator=’ in ‘itr = ((Spell*)this)->Spell::m_unitsHitList[j].std::multimap<_Key, _Tp, _Compare, _Alloc>::erase [with _Key = long long unsigned int, _Tp = long long unsigned int, _Compare = std::less, _Alloc = std::allocator >](itr)’ /usr/lib/gcc/i486-linux-gnu/4.1.2/../../../../include/c++/4.1.2/bits/stl_tree.h:152: note: candidates are: std::_Rb_tree_iterator >& std::_Rb_tree_iterator >::operator=(const std::_Rb_tree_iterator >&)