After the latest update of the MetaTrader 5 terminal beta (to build 228) the new error appeared in the newly recompiled expert advisors. When adding an EA to a chart an ”Unresolved Function” error is displayed in the Experts output tab and the EA isn’t attached (even the input parameters dialog doesn’t appear):
The error appears…
When using some MT4 expert advisors you may have encountered a rather annoying error message, which reads «OrderSend Error 129». This error should be avoided during EA’s creation, but even if you aren’t the author of the problematic EA, this error is rather easy to fix. OrderSend Error 129 in MetaTrader platform is internally called…
The expert advisors that work on one broker can stop working on another; the problem with them often lies in OrderSend Error 130. If you see Error 130 in the Log of your MetaTrader platform when your expert advisor should be opening a position, then that means that the stop-loss or take-profit levels…
OrderSend Error 131 is a very popular problem that is usually encountered when testing MT4 expert advisors. What causes this error? It’s called ERR_INVALID_TRADE_VOLUME in the MT4 code. That means that your expert advisor is trying to send an order with invalid trade volume. On the absolute majority of the MT4 brokers setting some EA to open an order…
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