我想跑: -
roslaunch turtlebot_gazebo turtlebot_world.launch
但我得到以下错误
Traceback (most recent call last):
File "/opt/ros/kinetic/share/xacro/xacro.py", line 55, in <module>
import xacro
File "/opt/ros/kinetic/lib/python2.7/dist-packages/xacro/__init__.py", line 42, in <module>
from roslaunch import substitution_args
File "/opt/ros/kinetic/lib/python2.7/dist-packages/roslaunch/__init__.py", line 56, in <module>
from .launch import ROSLaunchRunner
File "/opt/ros/kinetic/lib/python2.7/dist-packages/roslaunch/launch.py", line 55, in <module>
from roslaunch.nodeprocess import create_master_process, create_node_process
File "/opt/ros/kinetic/lib/python2.7/dist-packages/roslaunch/nodeprocess.py", line 49, in <module>
from roslaunch.node_args import create_local_process_args
File "/opt/ros/kinetic/lib/python2.7/dist-packages/roslaunch/node_args.py", line 53, in <module>
import roslib.packages
File "/opt/ros/kinetic/lib/python2.7/dist-packages/roslib/__init__.py", line 54, in <module>
import roslib.stacks
File "/opt/ros/kinetic/lib/python2.7/dist-packages/roslib/stacks.py", line 46, …