I have been trying (unsuccessfully for the past hour), to read a graphviz file into an adjacency_list type. The program stops with a SIGABRT because I haven't mapped "node_id" to anything within the dynamic properties argument. However, I really have no desire to map node_id to anything; this is a very large graph and I'd like to avoid the memory consumption. If I try to map node id to the vertex_index_t map I receive a compiler error stating that's a const property map. If I want to map node_id to vertex_name_t map, I have to add that property to my adjacency_list type which will bloat the memory consumption. I just want to build the graph without worry about the properties. Is there anyway this can be done easily? The documentation on read_graphviz and write_graphviz are sorely lacking on this subject in my opinion. -- Sam Peterson peabody@freeshell.org peabodyenator@gmail.com