Try looking in the log file referenced and see what's in there. You could paste the errors back here.
On 2/28/17 12:00, Laure Resplandy wrote:
Error: See/opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_science_ncview/ncview/_*main.log*_ for details
