GConf errors launching planner 0.14.6

[chamsdf@…]

Please pardon me if this is a noob problem (I'm not very experienced with MacPort issues...)

Just upgraded to OSX Mountain Lion, and for the first time installed MacPort and built Gnome 'planner'. Actually went well-- had only one hitch with libbonobo, and got around that by building bonobo with 'port clean libbonobo; port install libbonobo configure.compiler=llvm-gcc-4.2'. Then 'port install planner' completed successfully.

When I start planner, however, I get a TON of error messages like this:

Dynamic session lookup supported but failed: launchd did not provide a socket path, verify that org.freedesktop.dbus-session.plist is loaded!
GConf Error: Failed to contact configuration server; some possible causes are that you need to enable TCP/IP networking for ORBit, or you have stale NFS locks due to a system crash. See http://projects.gnome.org/gconf/ for information. (Details -  1: Failed to get connection to session: Not enough memory)

Same message appears 185 times. (I counted with 'wc -l'.) GConf port installed is 2.28.1_3.

I doubt this is actually a 'planner' issue, but I'm not sure where else to start. Any suggestions or workarounds?