The Sequence Diagram Link profiler builds a UML-style diagram of routine calls. Before making a diagram, it asks you to specify the starting routine for the diagram. If this routine does not call any routines, the diagram is meaningless. Note that virtual functions and routines located in modules that are not added to the Setup panel are also excluded from the list of available calls. So, the profiler will also display this message if the starting routine calls only virtual functions or functions located in modules that are not added to the Setup panel.