The strange thing when I add PR2 on empty gazebo scene

edit

I use ROS groovy on ubuntu 12.10 64 bits.

I can't upload the picture of gazebo.

Does anyone help me how to upload?

The message I got is:

sam@sam:~/code/ros_groovy/src$ roslaunch gazebo_worlds empty_world.launch
... logging to /home/sam/.ros/log/c6d55390-5e8c-11e3-ab5a-20cf30a23845/roslaunch-sam-1437.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 http://sam:56416/

SUMMARY
========

PARAMETERS
 * /rosdistro
 * /rosversion
 * /use_sim_time

NODES
  /
    gazebo (gazebo/gazebo)
    gazebo_gui (gazebo/gui)

ROS_MASTER_URI=http://localhost:11311

core service [/rosout] found
process[gazebo-1]: started with pid [1455]
process[gazebo_gui-2]: started with pid [1460]
Gazebo multi-robot simulator, version 1.5.0
Copyright (C) 2013 Open Source Robotics Foundation.
Released under the Apache 2 License.
http://gazebosim.org

Gazebo multi-robot simulator, version 1.5.0
Copyright (C) 2013 Open Source Robotics Foundation.
Released under the Apache 2 License.
http://gazebosim.org

Msg Waiting for master.Msg Waiting for master
[ INFO] [1386660366.853533724]: waitForService: Service [/gazebo/set_physics_properties] has not been advertised, waiting...
Msg Connected to gazebo master @ http://127.0.0.1:11345
Msg Publicized address: 192.168.0.101

Msg Connected to gazebo master @ http://127.0.0.1:11345
Msg Publicized address: 192.168.0.101
[ INFO] [1386660368.375304123, 0.023000000]: waitForService: Service [/gazebo/set_physics_properties] is now available.
[ INFO] [1386660368.404689916, 0.051000000]: Starting to spin physics dynamic reconfigure node...
Warning [ModelDatabase.cc:179] Unable to connect to model database using [http://gazebosim.org/models/camera/model.config]. Only locally installed models will be available.
Error [ModelDatabase.cc:344] Unable to get model name[http://gazebosim.org/models/camera]
Warning [ModelDatabase.cc:179] Unable to connect to model database using [http://gazebosim.org/models/cinder_block_2/model.config]. Only locally installed models will be available.
Error [ModelDatabase.cc:344] Unable to get model name[http://gazebosim.org/models/cinder_block_2]
Warning [ModelDatabase.cc:179] Unable to connect to model database using [http://gazebosim.org/models/construction_barrel/model.config]. Only locally installed models will be available.
Error [ModelDatabase.cc:344] Unable to get model name[http://gazebosim.org/models/construction_barrel]
Warning [ModelDatabase.cc:179] Unable to connect to model database using [http://gazebosim.org/models/create/model.config]. Only locally installed models will be available.
Error [ModelDatabase.cc:344] Unable to get model name[http://gazebosim.org/models/create]
Warning [ModelDatabase.cc:179] Unable to connect to model database using [http://gazebosim.org/models/cube_20k/model.config]. Only locally installed models will be available.
Error [ModelDatabase.cc:344] Unable to get model name[http://gazebosim.org/models/cube_20k]
Warning [ModelDatabase.cc:179] Unable to connect to model database using [http://gazebosim.org/models/double_pendulum_with_base/model.config]. Only locally installed models will be available.
Error [ModelDatabase.cc:344] Unable to get model name[http://gazebosim.org/models/double_pendulum_with_base]
Warning [ModelDatabase.cc:179] Unable to connect to model database using [http://gazebosim.org/models/drc_practice_2x4/model.config]. Only locally installed models will be available.
Error [ModelDatabase.cc:344] Unable to ...