Syntax error at input "line"

Break the line after the condition and indent line.new() four spaces.

Updated 23 October 2026. Runs in your browser; nothing you type is uploaded.

Try a worked example

Pine Script sourceOpen a .pine or .txt file

My script, Pine v6 indicator

TradingView's compiler stops at line 3

Syntax error at input "line"

Static checks, which read the code as written: High repaint / lookahead risk (1 critical issue). Edit the script and the compiler line goes; the checks below follow your edits.

Critical repaint flags

0 caution flags to verify

Bar-close gate

Not found

barstate.isconfirmed or a bar-close alert

Higher-timeframe calls

request.security() calls, of a 40 limit

Plots and alerts

Plots, of a 64 limit; 0 alerts

Repaint and lookahead

Line 3: History vs realtime branching (barstate.isrealtime / islast / ishistory)High risk
Using barstate.isrealtime, islast, or ishistory in signal calculations causes the script to compute one rule on live bars and a different rule when the chart reloads.
Fix: Keep barstate.islast strictly for drawing labels/tables, never inside signal or entry conditions.

Pine Script v6 migration checklist

Declares //@version=6, and none of the migration patterns this checker reads were found. TradingView's compiler is the final word.

Want TradingView indicators whose Pine Script v6 source already passes every check?

Every desk in Pine Pro Library ships as readable .pine v6 source with confirmed higher-timeframe requests and barstate.isconfirmed event logging.

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What causes it

An if and the line.new() it guards are on one line. Pine's if takes its body on the lines below, indented four spaces.

The fix, compiled

Break the line after the condition and indent line.new() four spaces.

Prints the error at line 3

//@version=6
indicator("My script", overlay = true)
if barstate.islast line.new(bar_index - 10, low, bar_index, high)
plot(close)

Compiles with no error

//@version=6
indicator("My script", overlay = true)
if barstate.islast
    line.new(bar_index - 10, low, bar_index, high)
plot(close)

Syntax: lines, brackets and characters

Compiled on TradingView 23 October 2026. The checker above reads repaint and v6 migration patterns; TradingView's compiler is the final word on whether a script compiles.

Method and privacy

Method: The script loaded in the checker was compiled on TradingView's Pine compiler on 23 October 2026 as //@version=6, and printed this error at line 3; the fix below compiled with no error or warning. Names such as variables come from the example and will differ in your script.

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