ncarg missing source file

[ingebj@…]

Hello,

While attempting to install "ncarg +gcc45" the following error message occured:

/Users/ingebj> sudo port install ncarg +gcc45
--->  Computing dependencies for ncarg
--->  Fetching ncarg
Error: Download ncl_ncarg_src-5.2.1.tar.gz manually and place it in /opt/local/var/macports/distfiles/ncarg.
  See instructions on http://www.ncl.ucar.edu//Download/index.shtml
--->  Verifying checksum(s) for ncarg
Error: Target org.macports.checksum returned: ncl_ncarg_src-5.2.1.tar.gz does not exist in /opt/local/var/macports/distfiles/ncarg
Log for ncarg is at: /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_ports_science_ncarg/main.log
Error: Status 1 encountered during processing.
To report a bug, see <http://guide.macports.org/#project.tickets>

So the only way to install ncarg is to manually fetch the source file from NCAR??