sudo port install netcdf on mac OSX Catalina failed

[eugloor]

Here is what I tried to do but did not succeed - many thanks for any suggestions what I should do differently.

sudo port install nco

....

---> Computing dependencies for netcdf ---> Fetching archive for netcdf Warning: Your DNS servers incorrectly claim to know the address of nonexistent hosts. This may cause checksum mismatches for some ports. See this page for more information: <​https://trac.macports.org/wiki/MisbehavingServers> ---> Attempting to fetch netcdf-4.7.0_1+cdf5+dap+netcdf4.darwin_19.x86_64.tbz2 from ​https://packages.macports.org/netcdf ---> Attempting to fetch netcdf-4.7.0_1+cdf5+dap+netcdf4.darwin_19.x86_64.tbz2 from ​http://lil.fr.packages.macports.org/netcdf ---> Attempting to fetch netcdf-4.7.0_1+cdf5+dap+netcdf4.darwin_19.x86_64.tbz2 from ​http://mse.uk.packages.macports.org/sites/packages.macports.org/netcdf ---> Fetching distfiles for netcdf ---> Attempting to fetch netcdf-c-4.7.0.tar.gz from ​http://lil.fr.distfiles.macports.org/netcdf ---> Verifying checksums for netcdf ---> Extracting netcdf ---> Applying patches to netcdf ---> Configuring netcdf Error: Failed to configure netcdf: configure failure: command execution failed Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_science_netcdf/netcdf/main.log for details. Error: Follow ​https://guide.macports.org/#project.tickets to report a bug. Error: Processing of port netcdf failed