Dear all, I recently upgraded my mac to OSX El Capitan, and tried to install demeter following the steps at http://bruceravel.github.io/demeter/ XQuartz 2.7.9 (xorg-server 1.17.4), Xcode 7.3.1, command line tools, “sudo port -v self update”, “port upgrade outdated” were all OK. When I tried “sudo port install xorg-server demeter”, it showed: ---> Computing dependencies for xorg-server ---> Cleaning xorg-server ---> Computing dependencies for demeter ---> Dependencies to be installed: ifeffit libgcc cctools llvm-3.8 libcxx libffi llvm_select gmp isl ld64 ld64-latest libmpc mpfr pgplot gcc5 ... (a long list) Then after many attempts to fetch libcxx-3.7.1_0.darwin_15.x86_64.tbz2 from various websites, it showed: Error: org.macports.archivefetch for port libcxx returned: archivefetch failed for libcxx @3.7.1_0 Error: Failed to install libcxx Please see the log file for port libcxx for details: /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_libcxx/libcxx/main.log The log file is attached. What should I do to fix it? Any suggestion will be appreciated. Thanks. Yuan