FlowscopeDocs

T204

missing argument

Open
View as Markdownllms.txt indexFull text for LLMs

Severity Error

A required parameter, one without a default value, was not supplied.

Pass the missing argument. The catalog shows every parameter with its default; only those without a default are required.

Failing example

Flowscope Script
script "Bollinger"
data chart = subscribe(data.ohlcv)
plot upper = plot.line(title: "Upper band")
plot lower = plot.line(title: "Lower band")
on chart.close {
  let (mid, up, lo) = ta.bb(chart.close, 20)
  upper.plot(up)
  lower.plot(lo)
  log.debug(str.format("mid {0}", mid ?? 0.0))
}

Fixed example

Flowscope Script
script "Bollinger"
data chart = subscribe(data.ohlcv)
plot upper = plot.line(title: "Upper band")
plot lower = plot.line(title: "Lower band")
on chart.close {
  let (mid, up, lo) = ta.bb(chart.close, 20, 2.0)
  upper.plot(up)
  lower.plot(lo)
  log.debug(str.format("mid {0}", mid ?? 0.0))
}