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B004

strategy property set twice

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Severity Error

The same property appears twice in the strategy declaration. Only one value can be in effect, and the Strategy Tester’s Properties tab has to show which one.

Remove one of the lines.

Failing example

Flowscope Script
script "Breakout"
strategy (
  initialCapital = 10_000.0
  commission = commission.percent(0.04)
  commission = commission.percent(0.055)
)
data chart = subscribe(data.ohlcv)
state prevHigh: float? = null
on chart.close {
  if chart.close > prevHigh {
    strategy.entry("Break", direction.long)
  }
  prevHigh = ta.highest(chart.high, 20)
}

Fixed example

Flowscope Script
script "Breakout"
strategy (
  initialCapital = 10_000.0
  commission = commission.percent(0.055)
)
data chart = subscribe(data.ohlcv)
state prevHigh: float? = null
on chart.close {
  if chart.close > prevHigh {
    strategy.entry("Break", direction.long)
  }
  prevHigh = ta.highest(chart.high, 20)
}