# Error messages

Below is a brief discussion of the various error messages
associated with the line Editor.

| col#? | Displays when a nonnumeric character is used in a syntax position that would ordinarily require a number. |
| --- | --- |
| Cmnd? | Indicates that an invalid Editor command was issued. |
| Eoi n | End of item occurs at line n. |
| L n | Indicates either the current line number (with the ? command), or the last line affected by an x command. |
| Not on file | Cannot find the requested item with the me command. |
| Seqn? | Changes must be made from the top down. An f command clears this up. Note: When this displays, the requested change does not take place. |
| String? | Usually means that the second part of the replace string has been omitted or that the syntax for the me command is incomplete. Also displays when a nonnumeric character is used in a syntax position that would ordinarily require a number. |
| Top | Indicates that the line pointer is positioned at attribute 0, or the top of the item. (An i command issued here will insert before attribute one). |

## Wrap-up error messages

| 'ID' deleted. | (error message item-ID = 222) |
| --- | --- |
| 'ID' exited. | (error message item-ID = 220) |
| 'ID' filed. | (error message item-ID = 221) |

## Example(s)

The most common error message
is the seqn? message. It indicates that a change is
being attempted to a line *above* a line that a change has been
made. To correct this, use the f command, then
try the same operation that previously failed.

```
014 print customer-ID
.i print
.12
012 print curr.bal
.i
seqn?
```

## See also

- [? command (Editor processor)](https://d3codex.com/editor/question-command-editor/)
- [ex command](https://d3codex.com/editor/ex-command/)
- [f command (Editor processor)](https://d3codex.com/editor/f-command-editor-processor/)
- [fd command](https://d3codex.com/editor/fd-command/)
- [fi command](https://d3codex.com/editor/fi-command/)
- [fs command](https://d3codex.com/editor/fs-command/)
- [me command](https://d3codex.com/editor/me-command/)
- [n command (Editor processor)](https://d3codex.com/editor/n-command-editor-processor/)
- [Editor overview](https://d3codex.com/editor/editor-overview/)
- [r command (Editor processor)](https://d3codex.com/editor/r-command-editor-processor/)
- [s? command](https://d3codex.com/editor/s-question-mark-command/)
- [t command (Editor processor)](https://d3codex.com/editor/t-command-editor-processor/)
- [ex command](https://d3codex.com/editor/ex-command/)

---
Source: https://d3codex.com/editor/error-messages/ - part of the D3Codex reference.