Hi, i am doing a frequency analysis for a frame. In that i want to apply point masses at 2 locations, i have modeled point masses in interaction module, i have connected point mass to frame using CONSTRAINTS> COUPLING. While submitting job i am getting this error " 55 nodes are missing degree of freedoms. The MPC/Equation/kinematic coupling constraints can not be formed. The nodes have been identified in node set ErrNodeMissingDofConstrDef." Now how to see this "ErrNodeMissingDofConstrDef" set ?

In which module or in which place i can find this set? Also any suggestion on how to correct it?