Exception in thread "main" java.lang.Error: Unresolved compilation problem: 

The method sort(FinderPatternFinder.EstimatedModuleComparator) is undefined for the type List<FinderPattern>

at com.google.zxing.qrcode.detector.FinderPatternFinder.selectBestPatterns(FinderPatternFinder.java:616)

at com.google.zxing.qrcode.detector.FinderPatternFinder.find(FinderPatternFinder.java:164)

at com.google.zxing.qrcode.detector.Detector.detect(Detector.java:81)

at com.google.zxing.qrcode.QRCodeReader.decode(QRCodeReader.java:77)

at com.google.zxing.MultiFormatReader.decodeInternal(MultiFormatReader.java:173)

at com.google.zxing.MultiFormatReader.decode(MultiFormatReader.java:71)

at com.pwl.zxing.ReadQRCode.main(ReadQRCode.java:31)