| S1204 | WARNING: S1204 | USING INITIALIZATION FILE: filename |
| Cause: | A Model Initialization file was not specified on the command line. Nastran will use the default Model Initialization file. | |
| Action: | Specify the Model Initialization file on the command line. | |
| Remarks: | See the Model Initialization File section and the NASTRAN Command Line section for more information. |