[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[netCDFJava #IEX-641190]: NoClassDefFoundError using GridDataset

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 Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated.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.

  • Subject: [netCDFJava #IEX-641190]: NoClassDefFoundError using GridDataset
  • Date: Mon, 24 Mar 2014 09:32:15 -0600
Tobias:

You have a simple classpath problem. 
Try putting netcdfAll-4.3.jar on your classpath.

John


> Full Name: Tobias Schug
> Email Address: address@hidden
> Organization: private
> Package Version:
> Operating System:
> Hardware:
> Description of problem:
> 
> I'm trying, to extract data from a GRIB2 File downloaded from the NOMADS
> ftp server using netCDF 4.3.
> 
> When I do open the file with toolsUI 4.3 the data is beeing displayed
> nicely.  So the file is OK.
> 
> While trying to open the same file in my code with:
> 
> GridDataset gridDataset = GridDataset.open(filename);
> 
> I get a NoClassDefFoundError for ucar.unidata.geoloc.ProjectionRect.
> This is confusing since I can see the ProjectionRect class within the
> imported netcdf-4.3.jar...
> 
> What do I have to do, in order to make this work. I couldn't find any
> solution in the web which is why I'm hoping that you can help me out
> with that.
> 
> I did included the following jars in my project:
> 
> netcdf-4.3.jar
> grib-4.3.jar
> jdom-1.1.2.jar
> joda-time-2.0.jar
> protobuf-java-2.4.1.jar
> slf4j-api-1.6.4.jar
> slf4j-log4j12-1.6.4.jar
> 
> and imported the following class files:
> 
> import ucar.grib.GribNumbers;
> import ucar.grib.grib1.Grib1Tables;
> import ucar.grib.grib2.Grib2Data;
> import ucar.grib.grib2.Grib2GDSVariables;
> import ucar.grib.grib2.Grib2GridDefinitionSection;
> import ucar.grib.grib2.Grib2IdentificationSection;
> import ucar.grib.grib2.Grib2IndicatorSection;
> import ucar.grib.grib2.Grib2Input;
> import ucar.grib.grib2.Grib2Record;
> import ucar.grib.grib2.Grib2Tables;
> import ucar.nc2.dt.grid.GridDataset;
> import ucar.unidata.io.RandomAccessFile;
> 
> Some of those I'm successfully using while dumping grib2 data to text
> which works just fine:
> 
> SimpleDateFormat dateFormat = new 
> SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'");
> dateFormat.setTimeZone(java.util.TimeZone.getTimeZone("GMT"));
> RandomAccessFile gribfile = new ucar.unidata.io.RandomAccessFile(filename, 
> "r");
> gribfile.order(RandomAccessFile.BIG_ENDIAN);
> Grib2Input gribInput = new Grib2Input(gribfile);
> gribInput.scan(false, false);
> ...
> 
> 


Ticket Details
===================
Ticket ID: IEX-641190
Department: Support netCDF Java
Priority: Normal
Status: Open