This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.
> Full Name: Rajko Popovic > Email Address: address@hidden > Organization: JPPGPRS > Package Version: 6.2 build date:2023-08-25 17:01 UTC > Operating System: Windows 10 > Hardware: Java: home: C:\Program Files\IDV_6.2\jre version: 1.8.0_302 > j3d:1.6.1 fcs fcs > Description of problem: There was an error loading the data: > Error creating data source:file.radar with: F:\JAH20230722172251.vol > null > java.io.IOException: Cant read F:/JAH20230722172251.vol: not a valid CDM file. > > We work with EDGE 6.2.3-16 , EEC corporation. > Hi Rajko, As you can tell in the error message, the JAH20230722172251.vol is not a valid CDM file. The CDM radial type includes most commonly used radar data formats, if you have interests to have the CMD radial type to include your special format radar file, there is some development work needs to be done first. Yuan > ****************** > Stack trace: > visad.VisADException: java.io.IOException: Cant read > F:/JAH20230722172251.vol: not a valid CDM file. > at ucar.unidata.data.radar.CDMRadarAdapter.init(CDMRadarAdapter.java:531) > at ucar.unidata.data.radar.CDMRadarAdapter.<init>(CDMRadarAdapter.java:234) > at > ucar.unidata.data.radar.CDMRadarDataSource.makeRadarAdapter(CDMRadarDataSource.java:709) > at ucar.unidata.data.radar.RadarDataSource$1.run(RadarDataSource.java:299) > at visad.util.ThreadManager.runInParallel(ThreadManager.java:276) > at visad.util.ThreadManager.runInParallel(ThreadManager.java:248) > at visad.util.ThreadManager.runInParallel(ThreadManager.java:215) > at > ucar.unidata.data.radar.RadarDataSource.makeAdapters(RadarDataSource.java:320) > at > ucar.unidata.data.radar.RadarDataSource.getAdapters(RadarDataSource.java:252) > at > ucar.unidata.data.radar.RadarDataSource.getRadarAdapters(RadarDataSource.java:637) > at > ucar.unidata.data.radar.CDMRadarDataSource.doMakeDataChoices(CDMRadarDataSource.java:407) > at ucar.unidata.data.DataSourceImpl.getDataChoices(DataSourceImpl.java:1856) > at ucar.unidata.data.DataManager.createDataSource(DataManager.java:1657) > at > ucar.unidata.idv.IntegratedDataViewer.createDataSource(IntegratedDataViewer.java:1978) > at > ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDataViewer.java:1895) > at > ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDataViewer.java:1829) > at > ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDataViewer.java:1802) > at ucar.unidata.idv.chooser.IdvChooser.makeDataSource(IdvChooser.java:943) > at ucar.unidata.idv.chooser.FileChooser.selectFilesInner(FileChooser.java:659) > at ucar.unidata.idv.chooser.FileChooser.selectFiles(FileChooser.java:528) > at ucar.unidata.idv.chooser.FileChooser.doLoadInThread(FileChooser.java:550) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:498) > at ucar.unidata.util.Misc$2.run(Misc.java:1215) > at ucar.unidata.util.Misc$3.run(Misc.java:1243) > > > Ticket Details =================== Ticket ID: ATQ-241730 Department: Support IDV Priority: Normal Status: Open =================== NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.