Ingesting network data in local cache makes following error;

java.lang.ClassCastException: org.geotools.data.shapefile.ShapefileFeatureReader cannot be cast to org.geotools.data.simple.SimpleFeatureReader
at edu.illinois.ncsa.ergo.gis.network.datasets.factories.NetworkDatasetFactory.convertLineShapefile(NetworkDatasetFactory.java:286)
at edu.illinois.ncsa.ergo.gis.network.datasets.factories.NetworkDatasetFactory.convertDataset(NetworkDatasetFactory.java:261)
at edu.illinois.ncsa.ergo.gis.network.datasets.factories.NetworkDatasetFactory.ingestDataset(NetworkDatasetFactory.java:1060)
at edu.illinois.ncsa.ergo.gis.repositories.LocalRepository.ingest(LocalRepository.java:356)
at edu.illinois.ncsa.ergo.gis.ui.wizards.ingest.DatasetIngestWizard$1.execute(DatasetIngestWizard.java:207)
at edu.illinois.ncsa.ergo.gis.jobs.SimpleTaskJob.run(SimpleTaskJob.java:47)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)