Hello, I am using Microsoft Development Environment 2002. I am trying to compile a Graph and use bundled properties. The error I am getting: \src\vtkSNL\Applications\RouteViz\rtrGraph.cxx(37) : error C2676: binary '[' : 'SimpleGraph' does not define this operator or a conversion to a type acceptable to the predefined operator \src\vtkSNL\Applications\RouteViz\rtrGraph.cxx(37) : error C2228: left of '.i' must have class/struct/union type The code snippet below exhibits the problem: struct nodeProp { int i; }; struct edgeProp { int i; }; typedef adjacency_list SimpleGraph; void someFunc() { SimpleGraph someGraph(3); Graph::vertex_descriptor v = *vertices(someGraph).first; someGraph[v].i = 7; // This line is where the error is occuring } Anybody familiar with this problem? Thanks for looking this over, -Jon