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2
Votes

LateInitializationError: Field '_name@779283885' has not been initialized

Installed 

  syncfusion_flutter_charts: ^19.1.54+1
My charts (that worked with 18.4.0.49) now fail with the ERROR listed in the title.  StackTrace indicates the error is in displaying a technical indicator - EMA.
I have several and they are all which are created with this code

  EmaIndicator ema(List chartData, int period) {
    print('EMA$period');
    return EmaIndicator(
      name: 'EMA$period',
      signalLineColor: Colors.lightGreen,
      dashArray: period == 50 ? [5, 5] : null,
      dataSource: chartData,
      xValueMapper: (ChartData data, _) => data.date,
      openValueMapper: (ChartData data, _) => data.open,
      highValueMapper: (ChartData data, _) => data.high,
      lowValueMapper: (ChartData data, _) => data.low,
      closeValueMapper: (ChartData data, _) => data.close,
      period: period,
    );
  }

Clearly the EMA indicator has the name property set.