On Sep 27, 2019, at 05:42, Vahid Askarpour wrote: > Error: Failed to install libgcc9: no destroot found at: /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc9/libgcc9/work/destroot Please see: https://trac.macports.org/wiki/ProblemHotlist#nodestrootfound