Validation rules are enforced during development of a File MBO and, in some cases, when you deploy the MBO to Unwired Server. Error/warning messages are generated when validation rules are violated.
| Severity and message |
| Error: Source server files path for download operation is empty. |
| Error: Invalid source server file path for download operation: {0}. |
| Error: Target server folder path for upload operation is empty. |
| Error: Invalid target server folder path for upload operation: {0}. |
| Error: Target device folder path for download operation is empty. |
| Error: Invalid target device folder path for download operation: {0}. |
| Error: Source device files path for upload operation is empty. |
| Error: Invalid source device file path for upload operation: {0}. |
| Error: Neither download nor upload is defined: {0} |