gnuplot

[Gaetano Sardina]

Dear users,
I am trying to install the port
gnuplot on my macbook air with OS X 10.9.2
with the command
sudo port install gnuplot I obtain the following error message:

--->  Computing dependencies for libpng
--->  Extracting libpng
Error: org.macports.extract for port libpng returned: command execution
failed
Please see the log file for port libpng for details:

/opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_graphics_libpng/libpng/main.log
Error: Unable to upgrade port: 1
Error: Unable to execute port: upgrade fontconfig failed




how can i solve it?
thanks Gaetano
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.macosforge.org/pipermail/macports-users/attachments/20140320/c63d0fb8/attachment.html>