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[bzrobot_global.launch] is neither a launch file in package [bzrobot_global] nor is [bzrobot_globa] a launch file name The traceback for the exception was written to the log file
或者
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ERROR: cannot launch node of type [bzrobot_yk/bzrobot_yk]: bzrobot_yk ROS path [0]=/opt/ros/kinetic/share/ros ROS path [1]=/home/wsh/code/bzrobotd ROS path [2]=/opt/ros/kinetic/share
ros使用的过程中,有时候明明有某个node或者launch文件,但是rosrun 或者roslaunch启动的时候,就是找不着:
此时可打打印下 ROS_PACKAGE_PATH的路径
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echo $ROS_PACKAGE_PATH
看一下工作路径是否含有,如果不含有,在.bashrc中添加(.bashrc 在home路径下,最好添加在最后一行,不然其他环境变量可能会覆盖)
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export ROS_PACKAGE_PATH=/home/wsh/sw-build/devel:$ROS_PACKAGE_PATH
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