Hi Valerio, Hmm, that seems like some set of packages didn't update completely. What does ~> port installed |grep p5.24.*compress show? For me, it gives p5.24-compress-raw-bzip2 @2.69.0_0 (active) p5.24-compress-raw-zlib @2.69.0_0 (active) p5.24-io-compress @2.69.0_0 (active) If one of these is showing a version number of "2.15", that might explain the error. Either way, I'd suggest doing ~> port upgrade outdated Hope that helps, --Matt On Wed, Dec 7, 2016 at 7:24 AM, Valerio Scagnoli wrote:

Dear all, I was trying to install demeter on my Mac with mac port and the installation seemed to run smoothly (after following the advice on the installation page!). However, when I try to start Athena from the command line I get the following error message: bash-3.2$ athena IO::Compress::Base::Common version 2.069 required--this is only version 2.015 at /opt/local/lib/perl5/vendor_perl/5.24/Compress/Zlib.pm line 10, <DATA> line 1. BEGIN failed--compilation aborted at /opt/local/lib/perl5/vendor_perl/5.24/Compress/Zlib.pm line 10, <DATA> line 1. Compilation failed in require at /opt/local/lib/perl5/site_ perl/5.24/darwin-thread-multi-2level/Demeter/Files.pm line 27, <DATA> line 1. BEGIN failed--compilation aborted at /opt/local/lib/perl5/site_ perl/5.24/darwin-thread-multi-2level/Demeter/Files.pm line 27, <DATA> line 1. Compilation failed in require at /opt/local/lib/perl5/vendor_perl/5.24/Module/Runtime.pm line 317, <DATA> line 1. Compilation failed in require at /opt/local/lib/perl5/site_ perl/5.24/darwin-thread-multi-2level/Demeter/UI/Athena.pm line 24, <DATA> line 1. BEGIN failed--compilation aborted at /opt/local/lib/perl5/site_ perl/5.24/darwin-thread-multi-2level/Demeter/UI/Athena.pm line 24, <DATA> line 1. Compilation failed in require at /opt/local/bin/athena line 27, <DATA> line 1. BEGIN failed--compilation aborted at /opt/local/bin/athena line 27, <DATA> line 1.

I tried to install the following zlib packages and uninstall/reinstall demeter, but the error still remains. bash-3.2$ port installed |grep zlib p5.24-compress-raw-zlib @2.69.0_0 (active) zlib @1.2.8_0+universal (active)

I have the following perl package installed bash-3.2$ port installed |grep perl p5.24-libwww-perl @6.150.0_0+ssl (active) p5.24-perl-ostype @1.10.0_0 (active) p5.24-perlio-layers @0.11.0_0 (active) p5.24-perlio-utf8_strict @0.6.0_0 (active) perl5 @5.24.0_0+perl5_24 (active) perl5.24 @5.24.0_0+universal (active)

Any help will be appreciated. Valerio Scagnoli

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