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 Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated.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.
> Full Name: Tim Schreckengost > Email Address: address@hidden > Organization: University of Delaware > Package Version: 3.1u1 build date:2012-11-30 17:36 UTC > Operating System: Windows 7 > Hardware: Java: home: C:\Program Files\IDV_3.1u1\jre version: 1.6.0_31 > j3d:1.5.2 fcs (build4) > Description of problem: I'm having trouble mapping Level II Radar Data from > the KDOX radar. I am constantly getting error messages when I try to "Create > Display" in the Map View. Generally, when I map using the Reflectivity > Elevation Angle of .5, the mapping will be successful. When I try a higher > elevation angle, it gives me an error message. Now, I am getting the error > message for the .5 elevation angle as well. Below is one of the error > messages I am receiving. > > Error reading: > > Creating obs > java.lang.NullPointerException > > ****************** > Stack trace: > java.lang.NullPointerException > > > Hi Tim, Did you try on more than one file when you were getting the error message? I am guessing that these files may have different scan pattern. Could you try to work on a couple single files and see if there error coming back? Otherwise, upload a few sample for us to check: http://motherlode.ucar.edu/repository/alias/idvupload Yuan http://motherlode.ucar.edu/repository/alias/idvupload Ticket Details =================== Ticket ID: UOQ-609105 Department: Support IDV Priority: Normal Status: Open