installation stopped accidentally

[pritish.naik.04@…]

pritishs-MacBook-Pro-3:~ pritish04$ sudo port install netcdf-fortran ---> Computing dependencies for netcdf-fortran ---> Dependencies to be installed: libgcc cctools llvm-3.5 cloog gmp isl gcc_select ld64 libmpc mpfr ---> Extracting llvm-3.5 Error: org.macports.extract for port llvm-3.5 returned: Failed to locate 'xz' in path: '/opt/local/bin:/opt/local/sbin:/bin:/sbin:/usr/bin:/usr/sbin' or at its MacPorts configuration time location, did you move it? Error: Failed to install llvm-3.5 Please see the log file for port llvm-3.5 for details:

/opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_llvm-3.5/llvm-3.5/main.log

Error: The following dependencies were not installed: libgcc cctools llvm-3.5 cloog gmp isl gcc_select ld64 libmpc mpfr To report a bug, follow the instructions in the guide:

​http://guide.macports.org/#project.tickets

Error: Processing of port netcdf-fortran failed