Error 129 with a basic orderSend function

[Forex Trader]

Why do I get error 129 in this code?

RefreshRates();
if(0 < OrderSend(Symbol(),OP_BUY,LotSize,Bid,SlippageAllowed,0,0,NULL,0,0,Green))
{

// do stuff

}

else

{

// do other stuff

}

[Forex Trader]

You want to Buy on Bid. Try that:

RefreshRates();
if(0 < OrderSend(Symbol(),OP_BUY,LotSize,Ask,SlippageAllowed,0,0,NULL,0,0,Green))
{

// do stuff

}

else

{

// do other stuff

}

[Forex Trader]

Fantastic. Thank you very much.