| T2012 | FATAL ERROR: T2012 | ENTRY REFERENCES AN UNDEFINED SUBCASE id IN FIELD field |
| Cause: | The specified Bulk Data entry referenced a subcase that does not exist. | |
| Action: | Change reference to an existing subcase identification number or add the referenced subcase to the model. | |
| Remarks: | See Autodesk Nastran Reference Guide, Section 4, Bulk Data, for entry format. |