py27-pygraphviz py27-goocanvas py27-kiwi for Macports with mac OS 10.11.6

[mohibi]

166:~ mohibihussain$ sudo port install py27-pygraphviz py27-goocanvas py27-kiwi Password: Warning: xcodebuild exists but failed to execute Warning: Xcode does not appear to be installed; most ports will likely fail to build. ---> Computing dependencies for py27-pygraphviz ---> Cleaning py27-pygraphviz Warning: Xcode does not appear to be installed; most ports will likely fail to build. Warning: All compilers are either blacklisted or unavailable; defaulting to first fallback option Warning: All compilers are either blacklisted or unavailable; defaulting to first fallback option ---> Computing dependencies for py27-goocanvas ---> Staging py27-goocanvas into destroot Error: Failed to destroot py27-goocanvas: command execution failed Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_python_py-goocanvas/py27-goocanvas/main.log for details. Error: Follow ​https://guide.macports.org/#project.tickets to report a bug. Error: Processing of port py27-goocanvas failed