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 Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated.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.
The link to the nightly release is https://www.unidata.ucar.edu/downloads/idv/nightly/index.jsp IDV support address@hidden> wrote: > New Client Reply: NullPointer exception in IDV > > Hi Yuan, > > The most recent version I see on the downloads page ( > https://www.unidata.ucar.edu/downloads/idv/current/index.jsp) says it was > last updated May, 22, 2018. Is this the correct installer or is there > another place I must go to get release 5.5u1? > > Thanks, > Ryland > > -----Original Message----- > From: Unidata IDV Support <address@hidden> > Sent: Wednesday, June 20, 2018 12:40 PM > To: Newman, Ryland <address@hidden> > Cc: address@hidden > Subject: [IDV #KBE-748663]: NullPointer exception in IDV > > > Aha, thank you for letting me know. > > > > Ryland > > Hi Ryland, > > The nightly release (5.5u1) should have the fix for this bug, please give > it a try. > > > Yuan > > > > -----Original Message----- > > From: Unidata IDV Support <address@hidden> > > Sent: Thursday, June 14, 2018 12:21 PM > > To: Newman, Ryland <address@hidden> > > Cc: address@hidden > > Subject: [IDV #KBE-748663]: NullPointer exception in IDV > > > > > Hi Yuan, > > > > > > In proceeding down the route you suggested, I run into the same error: > > > java.lang.NullPointerException > > > at > > > ucar.nc2.dataset.transform.Geostationary.makeCoordinateTransform(Geo > > > st > > > ationary.java:179) > > > > > > Perhaps there is a plugin I must install for IDV to view Cloud > Moisture Imagery? > > > > > > > Ok, I can verify this is a bug in our netcdf library. We will try to > find a solution asap. > > > > Yuan > > > -----Original Message----- > > > From: Unidata IDV Support <address@hidden> > > > Sent: Wednesday, June 13, 2018 4:01 PM > > > To: Newman, Ryland <address@hidden> > > > Cc: address@hidden > > > Subject: [IDV #KBE-748663]: NullPointer exception in IDV > > > > > > > Hello, > > > > > > > > My name is Ryland Newman and I am with CARR Astronautics. We are > > > > interested in using IDV to visualize L2 CMI products from the GOES > > > > 16 satellite. > > > > > > Hi Ryland, > > > > > > I am not able to connect to the url you provided. > > > > > > We do have some L2 test data available and can be loaded and display > in the IDV: > > > > > > http://thredds-test.unidata.ucar.edu/thredds/catalog/satellite/goes1 > > > 6/ > > > GRB16/catalog.xml > > > > > > load this to the catalog entry, and go from there. > > > > > > > > > Yuan > > > > > > > > I have downloaded an example file from > > > > > > > > https://www.ncei.noaa.gov/data/goes-r-series-l2-cloud-and-moisture > > > > -i ma gery-products/access/conus/2017/235/ > > > > > > > > for my testing. > > > > > > > > In following the Beginner's Guide I have gone to Data Choosers and > > > > located the downloaded netCDF file on my disk, however when I go > > > > to Add Source I receive the following NullPointer exception: > > > > > > > > java.lang.NullPointerException > > > > at > > > > ucar.nc2.dataset.transform.Geostationary.makeCoordinateTransform(G > > > > eo > > > > st > > > > ationary.java:179) at > > > > ucar.nc2.dataset.CoordTransBuilder.makeCoordinateTransform(CoordTr > > > > an > > > > sB > > > > uilder.java:218) at > > > > ucar.nc2.dataset.CoordSysBuilder.makeCoordinateTransforms(CoordSys > > > > Bu > > > > il > > > > der.java:985) at > > > > ucar.nc2.dataset.CoordSysBuilder.buildCoordinateSystems(CoordSysBu > > > > il > > > > de > > > > r.java:577) at > > > > ucar.nc2.dataset.NetcdfDataset.enhance(NetcdfDataset.java:475) > > > > at ucar.nc2.dataset.NetcdfDataset.<init>(NetcdfDataset.java:1462) > > > > at > > > > ucar.nc2.dataset.NetcdfDataset.openDataset(NetcdfDataset.java:433) > > > > at > > > > ucar.nc2.dataset.NetcdfDataset.acquireDataset(NetcdfDataset.java:5 > > > > 28 > > > > ) at ucar.nc2.dt.grid.GridDataset.open(GridDataset.java:117) > > > > at ucar.nc2.dt.grid.GridDataset.open(GridDataset.java:103) > > > > at > > > > ucar.unidata.data.grid.GeoGridDataSource.doMakeDataSet(GeoGridData > > > > So > > > > ur > > > > ce.java:1201) at > > > > ucar.unidata.data.grid.GeoGridDataSource.getDataset( > GeoGridDataSource. > > > > java:1223) at > > > > ucar.unidata.data.grid.GeoGridDataSource.initAfterCreation(GeoGrid > > > > Da > > > > ta > > > > Source.java:514) at > > > > ucar.unidata.data.DataManager.createDataSource(DataManager.java:16 > > > > 12 > > > > ) > > > > at > > > > ucar.unidata.idv.IntegratedDataViewer.createDataSource(IntegratedD > > > > at > > > > aV > > > > iewer.java:1978) at > > > > ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDat > > > > aV > > > > ie > > > > wer.java:1895) at > > > > ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDat > > > > aV > > > > ie > > > > wer.java:1829) at > > > > ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDat > > > > aV > > > > ie > > > > wer.java:1802) at > > > > ucar.unidata.idv.chooser.IdvChooser.makeDataSource(IdvChooser.java > > > > :9 > > > > 43 > > > > ) at > > > > ucar.unidata.idv.chooser.FileChooser.selectFilesInner(FileChooser. > > > > ja > > > > va > > > > :659) at > > > > ucar.unidata.idv.chooser.FileChooser.selectFiles(FileChooser.java: > > > > 52 > > > > 8) > > > > at > > > > ucar.unidata.idv.chooser.FileChooser.doLoadInThread(FileChooser.ja > > > > va > > > > :5 > > > > 50) at sun.reflect.GeneratedMethodAccessor80.invoke(Unknown > > > > Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown > > > > Source) at java.lang.reflect.Method.invoke(Unknown Source) at > > > > ucar.unidata.util.Misc$2.run(Misc.java:1215) > > > > at ucar.unidata.util.Misc$3.run(Misc.java:1243) > > > > > > > > > > > > I receive this error both when selecting "I'm feeling lucky" for > > > > the Data Source Type, as well as when I select what should be the > > > > correct data type: "Grid files (netCDF/GRIB/OpenDap/GEMPAK)" > > > > > > > > I was wondering if you might have any guidance on how I might > > > > resolve this issue. Thanks for any help you are able to offer! > > > > > > > > Sincerely, > > > > > > > > Ryland Newman > > > > > > > > > > > > > > > > > Ticket Details > > > =================== > > > Ticket ID: KBE-748663 > > > Department: Support IDV > > > Priority: Normal > > > Status: Closed > > > =================== > > > 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. > > > > > > > > > > > > > > > Ticket Details > > =================== > > Ticket ID: KBE-748663 > > 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. > > > > > > > > > Ticket Details > =================== > Ticket ID: KBE-748663 > Department: Support IDV > Priority: Normal > Status: Closed > =================== > 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. > > > > > Ticket Details > =================== > Ticket ID: KBE-748663 > Department: Support IDV > Priority: Normal > Status: Open > Link: https://andy.unidata.ucar.edu/esupport/staff/index.php?_m= > tickets&_a=viewticket&ticketid=29444 > > Ticket Details =================== Ticket ID: KBE-748663 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.