[Invalid Volume] error!!!

[Mr. G]

Hey guys,

 

I'm trying to run this very simple EA (written in mql5), but for some reason I always get this error: 

2016.04.15 02:00:00.573 2012.10.05 07:17:59   CTrade::OrderSend: instant buy 0.01 NZDCAD at 0.80842 tp: 0.81842 [invalid volume] 

 

EA is really very simple, I googled a lot (in vain) , any idea what could be the error?

#property copyright "Test EA"

#define      EA_NAME        "Test EA"

input double Lots           = 0.01;
input double TP_absolute    = 0.0100;          // Take Profits (absolute price)


#include <Trade\Trade.mqh>



// ===================================================================
//| expert initialization function                                   |
// ===================================================================
int init()
{
   return(0);
}

// ===================================================================
//| expert deinitialization function                                 |
// ===================================================================
int deinit()
{
   return(0);
}

// ===================================================================
//| New bar event handler for the expert advisor                     |
// ===================================================================
void OnTick()
{
   if (PositionsTotal() != 0)
      return;

   CTrade *TradeCls = new CTrade;

   TradeCls.SetDeviationInPoints(1000);

   if (!TradeCls.PositionOpen(_Symbol, ORDER_TYPE_BUY, Lots, Ask(), 0, Ask() + TP_absolute, EA_NAME + " (Buy)"))
   {
      TradeCls.Result(result);
      Print("Buy Failed. Result Comment = ", TradeCls.ResultComment());
   }
}
// ===================================================================
double Ask()
{
   // Used for [ BUY ]

   MqlTick last_tick;
   SymbolInfoTick(_Symbol,last_tick);

   if (last_tick.ask != 0)
      return(last_tick.ask);
   else
   {
      // Most likely it's weekend
      double price[1];
      int    spread[1];

      CopyOpen  (_Symbol, PERIOD_M1, TimeCurrent(), 1, price);
      CopySpread(_Symbol, PERIOD_M1, TimeCurrent(), 1, spread);

      double ask = price[0] + spread[0] * _Point;

      return(ask);
   }
}
// ====================================================================
double Bid()
{
   // Used for [ SELL ]

   MqlTick last_tick;
   SymbolInfoTick(_Symbol,last_tick);

   if (last_tick.bid != 0)
      return(last_tick.bid);
   else
   {
      // Most likely it's weekend
      double price[1];
      int    spread[1];

      CopyOpen  (_Symbol, PERIOD_M1, TimeCurrent(), 1, price);
      CopySpread(_Symbol, PERIOD_M1, TimeCurrent(), 1, spread);

      double bid = price[0] + spread[0] * _Point;

      return(bid);
   }
}

 

Thanks! 

[Mr. G]

I forgot to mention:

1. Not even a single order is executed (so it's not like I don't have enough margin, for example)

2. Test run with a virtual balance of 10,000 USD

[Daniela Bluemel]

Is it the same with Lot of 0.1?

[Alain Verleyen]

Top-SecreT:
Is it the same with Lot of 0.1?

Yes, you need to check the minimum volume for this symbol on this broker.

[Mr. G]

Thank you guys, indeed the min. volume for this pair is 0.1 lot, good catch!