| T2259 | FATAL ERROR: T2259 | SUPERELEMENT id OMIT SET IS NULL |
| Cause: | The specified superelement does not contain any internal degrees of freedom. This may occur when all internal grid points are constrained. | |
| Action: | Move the superelement to the residual set or remove constraints from one or more grid points. Any grid point that is constrained within a superelement is automatically moved to the residual set. If any grid point has at least one component constrained, the entire grid point is moved. | |
| Remarks: | None. |