为什么在Weka中加载数据时会出现EOL错误？

import weka.core.converters.ConverterUtils.DataSource;
import weka.core.Instances;
import weka.core.converters.ArffLoader;
import weka.core.converters.ArffSaver;
import weka.core.converters.FileSourcedConverter;
import weka.core.converters.FileSourcedConverterUtils;
import weka.core.converters.Loader;
import weka.core.converters.Saver;
import weka.core.converters.SaverUtils;
import weka.core.converters.ArffLoader.ArffReader;
import weka.core.converters.ArffSaver.ArffSaverListener;

public class EOLExample {
    public static void main(String[] args) {
        try {
            // Load data from file
            DataSource source = new DataSource("path/to/datafile.arff");
            Instances data = source.getDataSet();

            // Set the file format to use "\n" as the line ending
            FileSourcedConverterUtils.setFileFormat(Loader.ARFF, "\n");

            // Save the modified data to a new file
            ArffSaver saver = new ArffSaver();
            saver.setInstances(data);
            saver.setFile(new File("path/to/newdatafile.arff"));
            saver.writeBatch();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}