问题解决——Gazebo 7升级到7.1.3（[gazebo-2] process has died；[gazebo_gui-3] process has died）

1.gazebo加载出现问题：

[gazebo-2] process has died [pid 2671, exit code 127,cmd /usr/local/share/drcsim-2.7/ros/atlasutils/scripts/
rungazebo vrctask1.world -q -r --recordencoding=zlib --recordpath=/tmp/vrctask1 _name:=gazebo _log:=/home/
tania/.ros/log/5704913c-0b8c-11e3-ba22-6c8814fca2c8/gazebo-2.log]. log file: /home/tania/.ros/log/57049
13c-0b8c-11e3-ba22-6c8814fca2c8/gazebo-2*.log

[gazebo_gui-3] process has died [pid 15649, exit code 139, cmd /home/usr/catkin_ws/src/gazebo_ros_pkgs/gazebo_ros/scripts/gzclient __name:=gazebo_gui __log:=/home/shahed/.ros/log/8981441a-03ea-11e3-8d2b-0017c4a8146b/gazebo_gui-3.log].
log file: /home/usr/.ros/log/8981441a-03ea-11e3-8d2b-0017c4a8146b/gazebo_gui-3*.log

2.升级gazebo

（1）

sudo sh -c 'echo "deb http://packages.osrfoundation.org/gazebo/ubuntu-stable `lsb_release -cs` main" > /etc/apt/sources.list.d/gazebo-stable.list'

（2） 

wget http://packages.osrfoundation.org/gazebo.key -O - | sudo apt-key add -

（3） 

sudo apt-get update

（4）

sudo apt-get install gazebo7 gazebo7-common

 其他版本安装类似。