Need help with code

Hi I want to ask about my code.. I have ctrader version 4.6.7
in this line is still some problem what can I do with it?

TradeType tradeType = TradeType.Buy;
            double stopLossPrice = Symbol.Bid - Symbol.PipSize * StopLoss;
            double takeProfitPrice = Symbol.Bid + Symbol.PipSize * TakeProfit;

            openedPosition = ExecuteMarketOrder(tradeType, Symbol, LotSize, "Long Position", null, stopLossPrice, takeProfitPrice);