Call labkit cli in Matlab producing error: org.scijava.NoSuchServiceException: Service net.imagej.ops.OpService not found.

[rmd13]

I am using Matlab to load labkit-command-line-0.1.4.jar and have a demo test:

afn_Classifier = 'D:\drosophila.classifier';
Context= org.scijava.Context(true);
aSegmenter = sc.fiji.labkit.ui.segmentation.weka.TrainableSegmentationSegmenter(Context);
aSegmenter.openModel(afn_Classifier); % error take place in this line

Java exception occurred:
org.scijava.NoSuchServiceException: Service net.imagej.ops.OpService not found.

at org.scijava.Context.service(Context.java:316)

at sc.fiji.labkit.pixel_classification.pixel_feature.settings.FeatureSetting.newInstance(FeatureSetting.java:128)

at sc.fiji.labkit.pixel_classification.pixel_feature.calculator.FeatureCalculator.lambda$new$0(FeatureCalculator.java:81)

at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)

at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1374)

at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)

at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)

at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)

at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)

at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)

at sc.fiji.labkit.pixel_classification.pixel_feature.calculator.FeatureCalculator.<init>(FeatureCalculator.java:81)

at sc.fiji.labkit.pixel_classification.classification.Segmenter.<init>(Segmenter.java:96)

at sc.fiji.labkit.pixel_classification.classification.Segmenter.fromJson(Segmenter.java:243)

at sc.fiji.labkit.ui.segmentation.weka.TrainableSegmentationSegmenter.openModel(TrainableSegmentationSegmenter.java:306)

Indeed I could find the class net.imagej.ops.OpService inside the jar file, but it says cannot find.
Is there something wrong with the matlab code?