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 Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated.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.
Hi Daniel, You will have to give us more information about how you arrived at that error. Best, Unidata IDV Support > Full Name: Daniel Mejia > Email Address: address@hidden > Organization: Aeronautical Civil > Package Version: 5.3 build date:2016-05-23 19:17 UTC > Operating System: Windows 7 > Hardware: Java: home: C:\Program Files\IDV_5.3\jre version: 1.8.0_45 > j3d:1.6.0-pre9-daily-experimental daily > Description of problem: Creating data source > java.lang.NullPointerException > > ****************** > Stack trace: > java.lang.NullPointerException > at > ucar.unidata.idv.IdvPersistenceManager.makeDataSourceFromXml(IdvPersistenceManager.java:3979) > at > ucar.unidata.idv.IntegratedDataViewer.makeDataSourceFromXml(IntegratedDataViewer.java:1942) > at ucar.unidata.idv.DataSourceHistory.process(DataSourceHistory.java:109) > at > ucar.unidata.idv.ui.QuicklinkPanel$FileHistory.objectClicked(QuicklinkPanel.java:826) > at ucar.unidata.idv.ui.QuicklinkPanel$2.run(QuicklinkPanel.java:504) > at ucar.unidata.util.Misc$3.run(Misc.java:1243) Ticket Details =================== Ticket ID: HBH-986787 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.