| Error Message | Meaning |
| access denied | No privilege for attempted operation. |
| ambiguous option name | Not enough characters specified. |
| argument missing | Option requires an argument. |
| device or resource busy | Attempt to write to a busy device. (Linux) |
| disk full | No more free disk space. |
| disk write-protected | Attempt to write to a write-protected disk. |
| drive not ready | Disk drive is off, or no media mounted. |
| duplicate file name | Attempt to overwrite an input or output file. |
| fatal I/O error | General (unknown) disk or device I/O error. |
| file not found | Intel-HEX file not found. (DOS/Windows) |
| illegal option syntax | Option is not correctly specified. |
| invalid argument | Option has an illegal argument. |
| no input file | There is no file name in the command line. |
| no such file or directory | Intel-HEX file not found. (Linux) |
| not a directory | Path contains a non-directory name. (Linux) |
| path not found | Disk or directory not found. (DOS/Windows) |
| too many open files | No more free file handles. |
| too many parameters | More than two file names have been specified. |
| unknown option | Option is not implemented. |