Error code 4051

hello,

I have downloaded the divergence trader EA from the online MT4 library and have been optimizing it and testing it in a demo acct for about three weeks. It appears to be working quite well but now each time I switch to the live account, I get an error: "order 0 failed to close. error: 4051" that occurs in an alert window. I get this alert about every 20 seconds. It actually caused other orders that I had open at the time to close immediately upon the alert.

Could you please help me to find out what the issue is?

Thanks.
Rich

I also get this message and depending which broker as to how often I get it.

The error occurs in many ea's and right now alpari is my broker and so far they are the best.

My trades also close all at once but not straight away, maybe 30 minutes later or not at all. Additionally if error is not picked up, the failed orders run from profit to debit and I get a margin call as orders open and dont close.

Any help would be greatly appreciated.

It would be difficult to say much without seeing the code but error 4051 is an "invalid function parameter value" error.

Well I am no programmer and I am new to this but I will try to find spot with the relevant code.

Otherwise since mine is a commercial ea (oh I emailed them a week ago and no answer), I can pm it to you and if you could take a look I would be estatic.

right now I just can't use it.

1 tick and I will post what I think is the relevant code

If i understand corectly the error is the result of one of the funtions in the EA being passed the wrong parameter. It also seems that is not something that the compiler can catch so finding the function thats causing this may take some time if the EA is large and has many functions involved. But if you can find the function then fixing this should be easy

OK, Well I will post this anyway. Maybe someone with a keen eye might take a look and solve it.

cheers

The code is avialable to anyone with MT4. All you have to do is right click on any EA you have, select online library. Scroll down to divergence trader and download the EA. There is a new v18 of the EA available at FPA, but my optimizations didn't work wth the new version.

Help on this issue from anyone with extensive experience in debugging MT4 code, would be greatly appreciated.

Rich

Hi einstr

This is my error..

Is this the same as your error?

01:14:48 2009.03.18 13:31 MyScript GBPUSD,H4: invalid ticket for OrderClose function
01:14:48 2009.03.18 13:31 MyScript GBPUSD,H4: OrderClose error 4051
01:14:48 2009.03.18 13:31 MyScript GBPUSD,H4: Order 0 failed to close. Error:4051
01:14:48 2009.03.18 13:31 MyScript GBPUSD,H4: close #10 buy 0.10 GBPUSD at 1.38840 sl: 0.00030 at price 1.39341
01:14:48 2009.03.18 13:31 MyScript GBPUSD,H4: Alert: Closing Account In Profit

Hi, for me, strangely the error is the same "OrderClose Error 4051".

My EA takes severals orders but when he closes the first open order,
I've seen then orderprice is 0 !, the order ticket is 0 ! and profit is too 0!

For the 2nd and next orders this error don't occurs.

I'm programer, but i dont understand this issue.

Someone can help me please ?

Have you googled "mt4 4051" yet?

Without more info, I can only guess, but most likely cause of error 4051 on OrderClose() is that you're attempting to close 0 lots, i.e. second parameter in the OrderClose() command resolves itself to 0.