***WARNING: AT LEAST ONE OF THE NODES OF CONNECTOR ELEMENT 1 (ASSEMBLY) DOES
NOT HAVE ANY MASS ASSOCIATED WITH IT. THIS COULD LEAD TO EQUATION
SOLVER ISSUES (ZERO PIVOTS, NUMERICAL SINGULARITIES, etc.) AND
HENCE TO INCORRECT SOLUTIONS WHEN THE CONNECTOR ELEMENT IS
ENFORCING KINEMATIC CONSTRAINTS (FROM EITHER INTRINSIC, CONNECTOR
STOP/LOCK, or CONNECTOR MOTION). PLEASE ATTACH THE CONNECTOR NODES
TO ELEMENTS FOR WHICH MASS IS DEFINED (SUCH AS ELEMENTS TYPE MASS
WITH A SMALL MASS) TO RESOLVE THE PROBLEM.
I assigned the point mass at the node where connectors are attached. But the same warning is occurring.