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Greetings! Please upload your .ctl file and the associated data file, and we'll have a look: http://motherlode.ucar.edu/repository/alias/idvupload Thanks! Sean > Full Name: Wang zongmin > Email Address: address@hidden > Organization: Hebei bureau of meteorology > Package Version: 3.0u2 build date:2012-02-10 17:21 UTC > Operating System: Windows XP > Hardware: Java: home: C:\Program Files\IDV_3.0u2\jre version: 1.6.0_20 > j3d:1.5.2 fcs (build4) > Description of problem: > > There was an error loading the data: > > Error creating data source:file.grads with: > D:\doctor_paper\wrfout\output02_2009-08-25_00_12.ctl > > Grid data source failed making data set: > D:\doctor_paper\wrfout\output02_2009-08-25_00_12.ctl > > Cant read D:/doctor_paper/wrfout/output02_2009-08-25_00_12.ctl: not a > valid CDM file. > > ****************** > Stack trace: > java.io.IOException: Cant read > D:/doctor_paper/wrfout/output02_2009-08-25_00_12.ctl: not a valid CDM file. > at ucar.nc2.NetcdfFile.open(NetcdfFile.java:836) > at ucar.nc2.NetcdfFile.open(NetcdfFile.java:479) > at ucar.nc2.dataset.NetcdfDataset.openOrAcquireFile(NetcdfDataset.java:696) > at ucar.nc2.dataset.NetcdfDataset.openDataset(NetcdfDataset.java:424) > at ucar.nc2.dataset.NetcdfDataset.acquireDataset(NetcdfDataset.java:520) > at ucar.nc2.dt.grid.GridDataset.open(GridDataset.java:101) > at ucar.nc2.dt.grid.GridDataset.open(GridDataset.java:87) > at > ucar.unidata.data.grid.GeoGridDataSource.doMakeDataSet(GeoGridDataSource.java:1094) > at > ucar.unidata.data.grid.GeoGridDataSource.getDataset(GeoGridDataSource.java:1116) > at > ucar.unidata.data.grid.GeoGridDataSource.initAfterCreation(GeoGridDataSource.java:478) > at ucar.unidata.data.DataManager.createDataSource(DataManager.java:1577) > at > ucar.unidata.idv.IntegratedDataViewer.createDataSource(IntegratedDataViewer.java:1980) > at > ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDataViewer.java:1897) > at > ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDataViewer.java:1831) > at > ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDataViewer.java:1804) > at ucar.unidata.idv.chooser.IdvChooser.makeDataSource(IdvChooser.java:943) > at ucar.unidata.idv.chooser.FileChooser.selectFilesInner(FileChooser.java:656) > at ucar.unidata.idv.chooser.FileChooser.selectFiles(FileChooser.java:525) > at ucar.unidata.idv.chooser.FileChooser.doLoadInThread(FileChooser.java:547) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at sun.reflect.NativeMethodAccessorImpl.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:1062) > at ucar.unidata.util.Misc$3.run(Misc.java:1090) > > > Ticket Details =================== Ticket ID: JWM-596769 Department: Support IDV Priority: Normal Status: Open