运行第二条，安装教学所需的依赖包报错

[chall1123]

rosdep install --from-paths src --ignore-src --rosdistro=kinetic -y
ERROR: the following packages/stacks could not have their rosdep keys resolved
to system dependencies:
slam_sim_demo: No definition of [hector_mapping] for OS [debian]

编译报错
ROS-Academy-for-Beginners/slam_sim_demo/CMakeLists.txt:3 (find_package)

-- Could not find the required component 'slam_karto'. The following CMake error indicates that you either need to install the package with the same name or change your environment so that it can be found.
CMake Error at /opt/ros/kinetic/share/catkin/cmake/catkinConfig.cmake:83 (find_package):
Could not find a package configuration file provided by "slam_karto" with
any of the following names:

slam_kartoConfig.cmake
slam_karto-config.cmake

Add the installation prefix of "slam_karto" to CMAKE_PREFIX_PATH or set
"slam_karto_DIR" to a directory containing one of the above files. If
"slam_karto" provides a separate development package or SDK, be sure it has
been installed.
Call Stack (most recent call first):
ROS-Academy-for-Beginners/slam_sim_demo/CMakeLists.txt:3 (find_package)

[lazyparser]

Could not find the required component 'slam_karto'.

这个依赖关系安装了么？

[anchuanxu]

尝试运行 $ rosdep install --from-paths src --ignore-src --rosdistro=${ROS_DISTRO} -y --os=ubuntu:xenial l另外有问题欢迎来机器人开发社区https://q.droid.ac.cn/提问

[lazyparser]

关闭没有后续反馈的 issues

[LeehanLee]

用的ubuntu18.04，尝试catkin_make也报这个错误，安装以下两个包后成功编译：
sudo apt-get install ros-melodic-slam-karto -y
sudo apt-get install ros-melodic-hector-mapping -y
但是，场景模型出不来。。。