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Re: Opening nc.zip files

Hi Pauline,
I think you have an old version of the grib-*.jar library on your classpath before the netcdf-*.jar file. The ucar.unidata.io.RandomAccessFile class is distributed in both library files and if those two libraries aren't in sync it can cause trouble.
The versions in netcdfAll-2.2.20.zip should match up. Here's the version info from the grib jar file: 

Built-On: 2007-05-15 13:13:58
Implementation-Version: 5.1.03

Ethan

Pauline Mak wrote:

Hi all,

I'm having trouble trying to open a nc.zip file.  I'm using the latest
version of the NetCDF library (netCDF 2.2.20).  Do I need to download
another library for the getRandomAccessFile method? 
When I open it, I get the following error message:

Exception in thread "main" java.lang.NoSuchMethodError:
ucar.unidata.io.RandomAccessFile.getRandomAccessFile()Ljava/io/RandomAccessFile;
    at
ucar.nc2.iosp.dorade.Doradeheader.isValidFile(Doradeheader.java:48)
    at ucar.nc2.iosp.dorade.Doradeiosp.isValidFile(Doradeiosp.java:60)
    at ucar.nc2.NetcdfFile.open(NetcdfFile.java:426)
    at ucar.nc2.NetcdfFile.open(NetcdfFile.java:261)
    at ucar.nc2.dataset.NetcdfDataset.openFile(NetcdfDataset.java:341)
    at
ucar.nc2.dataset.NetcdfDataset.openDataset(NetcdfDataset.java:175)
    at
ucar.nc2.dataset.NetcdfDatasetCache.acquire(NetcdfDatasetCache.java:203)
    at
ucar.nc2.dataset.NetcdfDatasetCache.acquire(NetcdfDatasetCache.java:183)
    at
ucar.nc2.dataset.NetcdfDatasetCache.acquire(NetcdfDatasetCache.java:171)
    at ucar.nc2.dt.grid.GridDataset.open(GridDataset.java:71)
    at au.org.tpac.test.TestCDM_Main.doFile(Unknown Source)
    .....

Interestingly, it works fine on TDS - when I browse for the file in TDS,
it's able to show all the attributes of the files.  In fact, the file
doesn't even show up a zip file.  Maybe there's another magical method
for opening the file?  I'm opening files using the method:

GridDataset.open ("file:///" + dirName);

Thanks for any help in advance :)

Cheers,

-Pauline.



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--
Ethan R. Davis                                Telephone: (303) 497-8155
Software Engineer                             Fax:       (303) 497-8690
UCAR Unidata Program Center                   E-mail:    edavis@xxxxxxxx
P.O. Box 3000
Boulder, CO  80307-3000                       http://www.unidata.ucar.edu/
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