1.ImportError: No module named beginner_tutorials.srv
解决：
cd ~/catkin_ws $ source devel/setup.bash $ rosrun beginner_tutorials add_two_ints_server.py
2.roscreat-pkg: command not found
catkin_create_pkg smartcar_description urdf
3.the config file '/opt/ros/indigo/share/urdf_tutorial/urdf.vcg' is a .vcg file, which is the old rviz config format.
将launch文件最后vcg改成rviz;
<node name="rviz" pkg="rviz" type="rviz" args="-d $(find urdf_tutorial)/urdf.rviz" /> </launch>
4.[base.urdf.rviz.launch] is neither a launch file in package [smartcar_description] nor is [smartcar_description] a launch file name
$ cd ~/catkin_ws
$ source devel/setup.bash
5.ERROR: the config file '/home/yrm/smartcar/src/smartcar_description/urdf.vcg' is a .vcg file, which is the old rviz config format.
把launch文件中的urdf.vcg改为urdf.rviz
6.E: Could not open lock file /var/lib/apt/lists/lock - open (13: Permission d。。。。。。
1、ps-aux 查出apt-get进程的PID，通常是一个四位数字。 2、用sudo kill PID代码 杀死进程 3、用sudo apt-get update，sudo apt-get dist-upgrade升级。
7.ERROR: cannot launch node of type [arbotix_python/arbotix_driver]: arbotix_python
没有安装arbotix包
$ sudo apt-get install ros-indigo-arbotix-*