在新电脑上第一次试运行Cartographer报错：
roslaunch cartographer_ros demo_backpack_2d.launch bag_filename:=/home/mjy/文档/rosbag/b0-2014-07-11-10-58-16.bag
报错内容为
RLException: Invalid <node> tag: 'ascii' codec can't decode byte 0xe6 in position 10: ordinal not in range(128).
Node xml is <node args="--clock $(arg bag_filename)" name="playbag" pkg="rosbag" type="play"/>
The traceback for the exception was written to the log file
原因是bag包包含中文路径。因此换：
roslaunch cartographer_ros demo_backpack_2d.launch bag_filename:=/home/mjy/dev/carto_ws/bag/b0-2014-07-11-10-58-16.bag
问题解决
本文地址：https://blog.csdn.net/weixin_44684139/article/details/107554618
