* </pre>
     * @param property The property name for the message. (NotNull)
     * @return this. (NotNull)
     */
    public FessMessages addErrorsCouldNotDeleteLoggedInUser(String property) {
        assertPropertyNotNull(property);
        add(property, new UserMessage(ERRORS_could_not_delete_logged_in_user));
        return this;
    }

    /**