# FilterParseError

If a [**Filter**](https://chaoses-ib.gitbook.io/directory-opus/manual/reference/scripting_reference/scripting_objects/filter) object fails to parse the [textual filter](https://chaoses-ib.gitbook.io/directory-opus/manual/reference/textual_filters) string you provide, you can retrieve this object from the **Filter.lasterror** property to find out what went wrong.

| Property Name | Return Type | Description                                                    |
| ------------- | ----------- | -------------------------------------------------------------- |
| length        | *int*       | Returns the length of the token that caused the parsing error. |
| message       | *string*    | Returns the error description.                                 |
| position      | *int*       | Returns the position of the parsing error in the input string. |
| token         | *string*    | Returns the token that caused the parsing error.               |