Compiler Fixes

Fix MT5 invalid stops before your EA wastes test runs.

Invalid stops are not usually a compiler issue. They are execution validation failures. The EA sends a stop-loss or take-profit that the broker, symbol, or current price does not accept.

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The EA compiles, but order placement fails because SL or TP is too close, wrong side, or not normalized.

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Check direction and distance

Buy and sell orders require stops on different sides of the live quote. Then the distance must respect spread, stop level, and freeze level.

Buy SL below Bid and buy TP above Ask

Sell SL above Ask and sell TP below Bid

Distance must exceed symbol stop, freeze, and spread restrictions

Normalize price precision

Gold, indices, forex, and synthetic symbols often use different digits. Normalize stops with the symbol digits before sending the trade.

Use SymbolInfoInteger for digits

NormalizeDouble stop prices

Avoid hard-coded pip assumptions

Keep risk calculation separate

The stop distance drives lot size. Do not hide stop fixes inside the sizing function. First calculate valid levels, then calculate risk from those levels.

Validate stop distance

Calculate lot from risk and stop size

Reject the trade if stop validation fails

Use the tool

Use Workfusion to review the EA execution block and add stop validation before the next compile/test cycle.

Fix the first error first

Keep full EA context attached

Recompile before changing strategy logic

Open compiler fix desk Open related tool page

Related guides

Continue the EA build path.

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Use spread filters to prevent an EA from entering during poor execution conditions without killing all trade frequency.

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Fixed-risk lot sizing for an MQL5 EA

Calculate EA position size from risk percent and stop distance instead of hard-coded lots.

Code Review

MQL5 logging and diagnostics for EAs

Add useful MQL5 logs that explain EA decisions without flooding the MetaTrader journal.