ubuntu20.04+python3编译gnss_ins_sim报错问题解决(多传感器融合定位第6章)

运行功能包时出现如下问题：

RLException: Roslaunch got a 'No such file or directory' error while attempting to run:

/home/hb/ws/sensor_fusion_ws/src/gnss_ins_sim/src/recorder_node_sim.py __name:=gnss_ins_sim_recorder_node __log:=/home/hb/.ros/log/5faa6140-30e9-11ed-a211-c1c0f221f6f2/gnss_ins_sim_recorder_node-2.log

Please make sure that all the executables in this command exist and have
executable permission. This is often caused by a bad launch-prefix.
The traceback for the exception was written to the log file

在gnss_ins_sim/src中找到recorder_node_sim.py，修改第一行代码

#!/usr/bin/python改为#!/usr/bin/python3

然后继续roslaunch gnss_ins_sim recorder_gnss_ins_sim.launch，又出现如下问题，

Traceback (most recent call last):
  File "/home/hb/ws/sensor_fusion_ws/src/gnss_ins_sim/src/recorder_node_sim.py", line 13, in <module>
    from gnss_ins_sim.sim import imu_model
ModuleNotFoundError: No module named 'gnss_ins_sim'

在网上下载gnss_ins_sim源码gnss_ins_sim_ros-master.zip，解压后将gnss_ins_sim放入/home/xx/ws/sensor_fusion_ws/src/gnss_ins_sim/src目录下
继续roslaunch gnss_ins_sim recorder_gnss_ins_sim.launch，又出现如下问题,

NotImplementedError: It is not currently possible to manually set the aspect on 3D axes

可能是matplotlib版本问题
在recorder_node_sim.py中找到135行
将‘3d’改为'2d'或'auto',继续运行roslaunch，如下图所示
轻松秒杀！

参考链接：https://answers.ros.org/question/308829/roslaunch-got-a-no-such-file-or-directory-error/