OrderSend error 138
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This error occurs when testing the server
In my system, this message is not displayed, a
nd the test is performed -
@l'andorrà
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I'm afraid I'm not a programmer, man, I'm just an advanced fxdreema user, sorry.
I hope jstap or ambrogio can be more helpful. -
@saeedkey I've been experiencing the same problem since yesterday, I don't understand why (but I'm working on a newly installed PC). Can anyone test this simple no trade-buy now project? So we can notify the administrator.
MT4 backtester -
I may have seen this error before but not recently, not sure how I resolved
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@jstap kindly, can you test my project (once per bar==> buy now) just to be sure is a local issue and not general issue
thanks
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i got the same problem too and i don't know why. never had this issue before last time
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this runs on backtest for me:

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@jstap ok thanks, the problem is elsewhere.
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TESTED DONT HAVE 138 PROBLEM ONLY THE NAME OF THAT EA

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https://fxdreema.com/forum/topic/20945/mt4-expert-does-nt-work-on-new-1421-build
The problem is on the new 1421 build
I also notified the admin
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I just migrated from Win 10 to Win 11 and the problem disappeared
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@saeedkey سلام OrderSend error 13
خواستم بپرسم تونستی مشکل رو حل کنی ؟ من الان به این مشکل خوردم و نمیدونم چکار کنم
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This is late October, and I am currently facing this challenge with OrderSend error 138. Also the error with lot size during forward testing.
Who has solved this problem? I really need help with this issue.
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Currently the solution is to upgrade to Win 11
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Thanks so much for the reply... But what could be the relationship between my OS and the EA error.
Thanks again for your clarification...
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The correlation is that the new build of meta trader only works correctly on win 11
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@Solowyse This is the second time you asked for the exact same question. Please don't duplicate threads.