* @param property The property name for the message. (NotNull)
     * @param arg0 The parameter arg0 for message. (NotNull)
     * @return this. (NotNull)
     */
    public FessMessages addErrorsInvalidQueryUnsupportedSortField(String property, String arg0) {
        assertPropertyNotNull(property);
        add(property, new UserMessage(ERRORS_invalid_query_unsupported_sort_field, arg0));
        return this;
    }