rossuihan:
你好请问我按照你2d那个直接建图，启动demo_zch_2d.launch文件后总是:
[robot_state_publisher-2] process has died [pid 373098, exit code 1, cmd /opt/ros/noetic/lib/robot_state_publisher/robot_state_publisher __name:=robot_state_publisher __log:=/home/rossuihan/.ros/log/1ea67e36-0bb6-11f0-9ce7-f3f55b9a1fa2/robot_state_publisher-2.log].
log file: /home/rossuihan/.ros/log/1ea67e36-0bb6-11f0-9ce7-f3f55b9a1fa2/robot_state_publisher-2*.log
[ WARN] [1743153806.604580263, 1741153566.042307008]: W0328 17:23:26.000000 373100 tf_bridge.cc:52] "base_link" passed to lookupTransform argument target_frame does not exist.
[ WARN] [1743153806.827093402, 1741153566.264659305]: W0328 17:23:26.000000 373100 tf_bridge.cc:52] "base_link" passed to lookupTransform argument target_frame does not exist.
这是因为什么呢？里程计和三维点云话题名已经更换成自己的了