Java 对WordExtractor的引用不明确

我正在尝试读取.doc文件。这是我的密码：

import java.io.*;
import org.apache.poi.hwpf.HWPFDocument;
import org.apache.poi.hwpf.extractor.WordExtractor;

public class ReadDocFile {

public static void main(String[] args) {
    File file = null;
    WordExtractor extract = null;
    try {

        file = new File("c:\\New.doc");
        FileInputStream fis = new FileInputStream(file.getAbsolutePath());
        HWPFDocument document = new HWPFDocument(fis);
        extract = new WordExtractor(document);
        String[] fileData = extract.getParagraphText();
        for (int i = 0; i < fileData.length; i++) {
            if (fileData[i] != null) {
                System.out.println(fileData[i]);
            }
        }
    } catch (Exception exep) {
    }
}
}

错误是说， 对单词提取器的引用不明确 WordExtractor中的构造函数WordExtractorDirectoryNode和WordExtractor中的构造函数WordExtractorHWPDocument都匹配

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帮帮我。

我也有同样的问题，我从中添加了3.0版

extract = new WordExtractor(document);