EAs that are enough to buy in the MQL5 market, EA is automatically installed into the script directory during installation.
- Expert advisor but downloaded in script folder
- i Have added a EA to Market But
- Metor editor help please
Forum on trading, automated trading systems and testing trading strategies
Mistake. No button "Download Trial"
Maxim Kuznetsov , 2018.12.07 08:47
I suspect that the EA is simply written in the old style, with the functions start () instead of OnTick ()
Forum on trading, automated trading systems and testing trading strategies
Any question novice, so as not to litter the forum. Pros, do not pass by. Without you nowhere - 6.
Konstantin Erin , 2017.11.16 06:02
instead of calling the start function, call the required function
In new builds, instead of start, other names are more fashionable: OnTick in the Expert Advisor, OnCalculate in the Indicator and OnStart in the Script
...
The determination to buy is EA.
You may think that you've bought an EA but many times the actual product is a script.
If it has been installed in the Scripts directory, then its a script.
There is one article which every seller on the market should read: it is about validation of the Market products -
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The checks a trading robot must pass before publication in the Market
Before any product is published in the Market, it must undergo compulsory preliminary checks, as a small error in the expert or indicator logic can cause losses on the trading account. That is why we have developed a series of basic checks to ensure the required quality level of the Market products.
- How to quickly catch and fix errors in trading robots
- Insufficient funds to perform trade operation
- Invalid volumes in trade operations
- Limiting Number of Pending Orders
- Limiting Number of Lots by a Specific Symbol
- Setting the TakeProfit and StopLoss levels within the SYMBOL_TRADE_STOPS_LEVEL minimum level
- Attempt to modify order or position within the SYMBOL_TRADE_FREEZE_LEVEL freeze level
- Errors that occur when working with symbols which have insufficient quote history
- Array out of Range
- Zero Divide
- Sending a request to modify the levels without actually changing them
- Attempt to import compiled files (even EX4/EX5) and DLL
- Calling custom indicators with iCustom()
- Passing an invalid parameter to the function (runtime error)
- Access violation
- Consumption of the CPU resources and memory
- Articles for reading
If any errors are identified by the Market moderators in the process of checking your product, you will have to fix all of them. This article considers the most frequent errors made by developers in their trading robots and technical indicators. We also recommend reading the following articles:
- 2021.06.11
- www.mql5.com
- Free trading apps
- Over 8,000 signals for copying
- Economic news for exploring financial markets
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