Error: org.macports.extract for port openmpi-default returned: command execution failed

[ygn.01123581321@…]

When I try to install openmpi-default by:

sudo port install -d openmpi-default

it returns the following:

--->  Computing dependencies for openmpi-default
Warning: Your DNS servers incorrectly claim to know the address of nonexistent hosts. This may cause checksum mismatches for some ports.
--->  Fetching distfiles for openmpi-default
--->  Verifying checksums for openmpi-default
--->  Extracting openmpi-default
Error: org.macports.extract for port openmpi-default returned: command execution failed
Please see the log file for port openmpi-default for details:
    /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_science_openmpi/openmpi-default/main.log
To report a bug, follow the instructions in the guide:
    http://guide.macports.org/#project.tickets
Error: Processing of port openmpi-default failed

[ryandesign (Ryan Carsten Schmidt)]

The log says:

sh: /usr/bin/gnutar: No such file or directory

This means that since upgrading to Mavericks, you haven't reinstalled MacPorts, which you need to do.

Please read MavericksProblems and Migration.