roscore has errors [closed]

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On Unbuntu 12.04, ROS fuerte, in an installation of drcsim-1.3.1 (gazebo), roscore has the following errors (can't have links in post so I Xed those out):

... logging to /home/cga/.ros/log/a6b2c846-60c6-11e2-9f20-0014225a80ab/roslaunch-cga2-2011.log
Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.



started roslaunch server htXtp:/X/cga2:57907/ ros_comm version 1.8.10

SUMMARY


PARAMETERS * /rosdistro * /rosversion


NODES


auto-starting new master Exception AttributeError: AttributeError("'DummyThread' object has no attribute 'Thread_block'",) in <module 'threading'="" from="" '="" usr="" lib="" python2.7="" threading.pyc'=""> ignored process[master]: started with pid [2027] ROSMASTER_URI=htXtp:/X/cga2:11311/


setting /runid to a6b2c846-60c6-11e2-9f20-0014225a80ab Exception AttributeError: AttributeError("'DummyThread' object has no attribute 'Thread_block'",) in <module 'threading'="" from="" '="" usr="" lib="" python2.7="" threading.pyc'=""> ignored process[rosout-1]: started with pid [2040] started core service [/rosout]

This seems to be causing ROS errors later on. My environment variables are:

ROS_ROOT=/opt/ros/fuerte/share/ros
ROSLISP_PACKAGE_DIRECTORY=/opt/ros/fuerte/share/common-lisp/ros
ROS_PACKAGE_PATH=/home/cga/drc-cmub/ros:/usr/share/drcsim-1.3/ros:/usr/share/drcsim-1.3/models/irobot_hand:/usr/share/drcsim-1.3/models/golf_cart:/usr/share/drcsim-1.3/models/drc_terrain:/usr/share/drcsim-1.3/models/sandia_hand_left:/usr/share/drcsim-1.3/models/multisense_sl:/usr/share/drcsim-1.3/models/sandia_hand:/usr/share/drcsim-1.3/models/sandia_hand_right:/usr/share/drcsim-1.3/models/fire_hose:/usr/share/drcsim-1.3/models/standpipe:/usr/share/drcsim-1.3/models/atlas:/usr/share/drcsim-1.3/models/powerplant:/usr/share/drcsim-1.3/models/atlas_sandia_hand:/usr/share/drcsim-1.3/models/atlas_irobot_hand:/opt/ros/fuerte/share:/opt/ros/fuerte/stacks
ROS_MASTER_URI=htXtp:/X/localhost:11311
ROS_WORKSPACE=/home/cga/drc-cmub/ros
ROS_DISTRO=fuerte
ROS_ETC_DIR=/opt/ros/fuerte/etc/ros