Hi Ambrogio, We just fixed a bug in the netCDF-4 C++ API that will probably get around the compiler error you are seeing near ncGroup.cpp line 225, namely changing line 221 from map<string,NcGroup>::iterator it; to multimap<string,NcGroup>::iterator it; and similarly for line 1253. You can make the change manually or get the snapshot release tomorrow to see if that fixes the problem: ftp://ftp.unidata.ucar.edu/pub/netcdf/snapshot/netcdf-4-daily.tar.gz --Russ Russ Rew UCAR Unidata Program address@hidden http://www.unidata.ucar.edu Ticket Details =================== Ticket ID: PQD-251634 Department: Support netCDF Priority: Normal Status: Closed