python27: /sw/bin/tar: Ignoring unknown extended header keyword `SCHILY.dev'

[hyunju527@…]

I tried to install gildas via macport but I got massage as below

Error: Failed to install python27
Please see the log file for port python27 for details:
    /opt/local/var/macports/logs/_opt_local_var_macports_sources_www.macports.org_files_ports_lang_python27/python27/main.log
Error: The following dependencies were not installed: gtk2 atk gobject-introspection cairo xorg-libXext xorg-libX11 xorg-libxcb python27 xorg-libpthread-stubs xorg-xcb-proto libxml2 xz xorg-xextproto xorg-xcb-util xrender xorg-renderproto libtool gdk-pixbuf2 jasper jpeg tiff hicolor-icon-theme pango Xft2 harfbuzz graphite2 shared-mime-info xorg-libXcomposite xorg-compositeproto xorg-libXfixes xorg-fixesproto xorg-libXcursor xorg-libXdamage xorg-damageproto xorg-libXi xorg-inputproto xorg-libXinerama xorg-xineramaproto xorg-libXrandr xorg-randrproto py27-numpy fftw-3 py27-nose nosetests_select py27-setuptools
To report a bug, follow the instructions in the guide:
    http://guide.macports.org/#project.tickets
Error: Processing of port gildas failed

I read some note from web site and tried again and again. But I still have big trouble. I use iMac 10.9.4 (Mavericks) and I choose python version to 2.7.

Please someone help me ;(