<div dir="ltr"><span style="font-family:arial,sans-serif;font-size:13px">Dear users,</span><div style="font-family:arial,sans-serif;font-size:13px">I am trying to install the port</div><div style="font-family:arial,sans-serif;font-size:13px">
gnuplot on my macbook air with OS X 10.9.2</div><div style="font-family:arial,sans-serif;font-size:13px">with the command</div><div style="font-family:arial,sans-serif;font-size:13px">sudo port install gnuplot I obtain the following error message:</div>
<div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px"><div>---&gt;  Computing dependencies for libpng</div><div>---&gt;  Extracting libpng</div><div>Error: org.macports.extract for port libpng returned: command execution failed</div>
<div>Please see the log file for port libpng for details:</div><div>    /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_graphics_libpng/libpng/main.log</div><div>Error: Unable to upgrade port: 1</div>
<div>Error: Unable to execute port: upgrade fontconfig failed</div></div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">
<br></div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">how can i solve it?</div><div style="font-family:arial,sans-serif;font-size:13px">thanks Gaetano</div>
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