| Exception | Description | |
| kEditableTextException | General exception identifier. | |
| kInvalidSelectionValue | Model received an invalid selection value. | |
| kInvalidParagraphOffset | Model received an invalid paragraph offset (for example, a negative number). | |
| kInvalidModel | Model is not valid for the requested operation. | |
| kModelAlreadyLockedForReading | Trying to lock a model that is already locked for reading. | |
| kModelNotLockedForReading | Trying to unlock a model that is not locked for reading. | |
| kModelAlreadyLockedForWriting | Trying to lock a model that is already locked for writing. | |
| kModelNotLockedForWriting | Trying to unlock a model that is not locked for writing. | |
| kInvalidTextMargins | Presenter state received invalid text margins. | |
| kInvalidSelectionType | View received a selection of the wrong type. | |
| kInvalidFormatterAddress | View received an invalid formatter address. |