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<div class="" style="word-wrap:break-word; line-break:after-white-space">I followed the steps you outlined with no problem. Here is the terminal output:
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<div class="">VahidAskarpour:~> sudo port uninstall libgcc<br class="">
Password:<br class="">
VahidAskarpour:~> sudo port selfupdate<br class="">
---> Updating MacPorts base sources using rsync<br class="">
MacPorts base version 2.6.0 installed,<br class="">
MacPorts base version 2.6.0 downloaded.<br class="">
---> Updating the ports tree<br class="">
---> MacPorts base is already the latest version<br class="">
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The ports tree has been updated. To upgrade your installed ports, you should run<br class="">
port upgrade outdated<br class="">
VahidAskarpour:~> sudo port sync<br class="">
---> Updating the ports tree<br class="">
VahidAskarpour:~> sudo port upgrade outdated<br class="">
Nothing to upgrade.<br class="">
---> Scanning binaries for linking errors<br class="">
---> No broken files found.<br class="">
---> No broken ports found.<br class="">
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<div class="">However, when I tried to install xcrysden, I got the same error. Here is the terminal output:</div>
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<div class="">VahidAskarpour:~> sudo port install xcrysden<br class="">
---> Computing dependencies for xcrysden<br class="">
The following dependencies will be installed: <br class="">
libgcc<br class="">
libgcc9<br class="">
Continue? [Y/n]: y<br class="">
---> Installing libgcc9 @9.2.0_0<br class="">
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<br class="">
Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc9/libgcc9/main.log for details.<br class="">
Error: Follow <a href="https://guide.macports.org/#project.tickets" class="">https://guide.macports.org/#project.tickets</a> to report a bug.<br class="">
Error: Processing of port xcrysden failed</div>
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<div class="">I have attached the log file which is similar to the one I posted yesterday.</div>
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<div class="">Thanks,</div>
<div class="">Vahid</div>
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<div class="">On Sep 26, 2019, at 9:49 PM, Chris Jones <<a href="mailto:jonesc@hep.phy.cam.ac.uk" class="">jonesc@hep.phy.cam.ac.uk</a>> wrote:</div>
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<div class=""><span class="" style="font-family:Helvetica; font-size:14px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none; float:none; display:inline!important">sudo
port upgrade outdated</span></div>
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