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Hello Molanis,

I was facing an error with the attached Indicator, an error message was: MQL compiler execution failed. May I know what's wrong with this Indicator and can it be use?

Thank you!

I attached errors file as well.

Please post the .mol strategy file, and the expert advisor description including an explanation of the signals
Mind you that type of indicators looks good on paper and in historical data. On live data they repaint up to 3 , 4 bars so they are not reliable

Thank you for your reply!

I want the signal 0 for EA to buy and signal 1 to sell.

What is signal 0/1? what do you see on the screen? We need to know buy/sell using what you see on the screen

When arrow pointing down is for sell and arrow pointing up is for buy.

You need to make changes to the indicator
Change:
extern int ExtDepth=115;//105;//21;
extern int ExtDeviation=130;//120;//24;
extern int ExtBackstep=80;//70;//14;

to
extern int ExtDepth=115;
extern int ExtDeviation=130;
extern int ExtBackstep=80;

Then it will be imported correctly

I think that indicator plots the arrow or has a cero value, you need to test that. Also, it probably repaints which causes many false signals. My experience with zigzag is that it repaints the last 3 bars so they are difficult to use in live trading.