008D8B82 Field "<field-name>" contains a self-reference and
    cannot be evaluated.

    Explanation:

    Field or variable definitions cannot have clauses that contain a
    self-reference. For example, you cannot use a COMPUTED BY clause
    that includes a value expression containing the name of the field
    or variable that is being defined.

    User Action:

    Reenter the definition but eliminate any recursive or self-
    referring expressions in definition clauses.