It sounds like that "Lane" is not attached to the assembly. When you add a
subassembly, left click it in the properties palette, then click one of the
"markers" in your assembly. If you don't pick one of those markers, that
subassembly will not be attached. Then you get the error when you try to
attach another sub to it.
Right click the Lane and pick add to assembly.
--
Matt Kolberg
Global CADD Systems - A division of Cansel
"ronpemberton7479" wrote in message news:6350749@discussion.autodesk.com...
> I am trying to construction an assembly. When I choose a subassembly and
> try to attach it to previous subassemblies, for instance attaching a lane
> transition or side slope to the outside of a lane, it wont always attach
> and I get the massage " Hook subassembly must be part of an assembly".
> Sometimes it attaches to the center marker point instead of the outside
> where I pick. Sometimes it works fine. Anyone know what is causing this?