[Boost-users] [BGL] seg fault

Replacing vector < set< Colour > > eColours; with std::map < int, set< Colour > > emColours; in edge properties. Using  property_map < graph_t, map < int, > > edge_properties::*>::type                                                 emColours_map = get(&edge_properties::emColours, g);   But get compiler error: template argument 2 invalid. Thanks -JR