| Error number | Error message |
| -10000 | AppleEvent handler failed. |
| -10001 | A descriptor type mismatch occurred. |
| -10002 | Invalid key form. |
| -10003 | Can't set <object or data> to <object or data>. Access not allowed. |
| -10004 | A privilege violation occurred. |
| -10005 | The read operation wasn't allowed. |
| -10006 | Can't set <object or data> to <object or data>. |
| -10007 | The index of the event is too large to be valid. |
| -10008 | The specified object is a property, not an element. |
| -10009 | Can't supply the requested descriptor type for the data. |
| -10010 | The AppleEvent handler can't handle objects of this class. |
| -10011 | Couldn't handle this command because it wasn't part of the current transaction. |
| -10012 | The transaction to which this command belonged isn't a valid transaction. |
| -10013 | There is no user selection. |
| -10014 | Handler only handles single objects. |
| -10015 | Can't undo the previous AppleEvent or user action. |
