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Hi Sun, > I'm a student.In the last e-mail,my expressions is incorrect, some errors > occurred when I tested the netcdf,I don't know the reason.The errors as > follow: > Can you tell me the reason and how can I resolve it You're seeing an error testing the access of remote data from an OPeNDAP server. It's because you are building and testing a version of netCDF from over 4 years ago, and the test server used for that data has changed. For more details, see this previous support response: https://www.unidata.ucar.edu/support/help/MailArchives/netcdf/msg12979.html You can solve the problem in any of the following ways: 1. Use the --disable-dap-remote-tests option to the "configure" script, to skip testing access to subsets of remote netCDF data. 2. Or, build from a more recent version, such as the latest release, version 4.3.3.1, of the netCDF-C library, available from GitHub or from Unidata's download site: http://www.unidata.ucar.edu/downloads/netcdf/ If you also need the netCDF-Fortran library, you would then have to download and build that separately, after the netCDF-C library is installed. 3. Or, download a version that's already compiled for your particular platform, as described here: http://www.unidata.ucar.edu/netcdf/docs/getting_and_building_netcdf.html#sec_get_pre_built --Russ Russ Rew UCAR Unidata Program address@hidden http://www.unidata.ucar.edu Ticket Details =================== Ticket ID: OHQ-697891 Department: Support netCDF Priority: Normal Status: Closed