• colcon, rosdepインストール
• submodulesやreadmeをgit@からhttpsに変更
• rosdep init, updateの説明追加
• env | grep ROSでドメインIDの確認
• rosdepは講習会ではスキップ？
• map.yamlのディレクトリ調整
• ROS1 Melodicが入っていると環境変数がおかしくなる？
• macOS, Windowsには対応しないことを明記
• RViz2で初回scanが映らない原因究明
• zshは非推奨（bashを使う）

Hi,

I have cloned this repo and build it, but it gives me a fatal error?
Do you have any idea how to solve it, it will be very much appreciated?

I am using ubuntu 20.04 (foxy) and installed everything correctly like in the documentation?

Nice to meet you.
I want to use ros2 + rpi lidar + cartographer.
So I am doing it by referring to your data.

S/W & H/W environment
.Ubuntu 18.04 + ros2 dashing version
.Rpi Lidar

I am trying to use slam(cartographer.) on ubuntu pc.
We proceeded in the following order.

Package build for PC

1. raspimouse_ros2 build
   mkdir -p ~/ros/dashing/src
   cd ~/ros/dashing/src
   git clone https://github.com/youtalk/raspimouse_ros2.git
   cd raspimouse_ros2
   git submodule update --init
   cd ../..
   rosdep install --from-paths src --ignore-src -r -y
   colcon build --symlink-install
   source ~/ros/dashing/install/setup.bash

#ros2 launch raspimouse_bringup robot.launch.py

2. Run Rviz2.
   #ros2 launch raspimouse_bringup rviz2.launch.py

The following error occurred.

Frame [odom] does not exist -> Global Status Error
[rviz2-1][ERROR][rviz2]: “odom” passed to lookupTransform argument target_grame does not exist.

Solution: Change the Fixed Frame and select base_link

3. Run raspimouse_cartographer to generate 2D map.
   #ros2 launch raspimouse_cartographer cartographer.launch.py
   The following error occurred.

Global Status: Error
Fixed Frame: Frame[map] does not exist.

Please advise on which part to check.

Thank you.
thanks

Nice to meet you.
I am asking a question from Japan.
I cloned your github and built it. However, I get an error that the include file does not exist.

【Environment】
ubuntu20.04
ROS2 foxy

【Nonexistent file name】
rosidl_generator_cpp/message_initialization.hpp

【error description】

Starting >>> raspimouse_msgs
Starting >>> cartographer_ros_msgs
Finished <<< raspimouse_msgs [4.23s]                                 
Starting >>> raspimouse_description
Finished <<< raspimouse_description [1.27s]
Starting >>> rplidar_ros
Finished <<< cartographer_ros_msgs [6.44s]
Starting >>> raspimouse
Finished <<< rplidar_ros [2.50s]                                   
Starting >>> cartographer_ros
--- stderr: raspimouse   
/home/user/ros/foxy/src/raspimouse_ros2/raspimouse_driver/raspimouse/src/raspimouse_component.cpp:25:10: fatal error: rosidl_generator_cpp/message_initialization.hpp: There are no such files or directories.
   25 | #include <rosidl_generator_cpp/message_initialization.hpp>
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[2]: *** [CMakeFiles/raspimouse_component.dir/build.make:63: CMakeFiles/raspimouse_component.dir/src/raspimouse_component.cpp.o] エラー 1
make[1]: *** [CMakeFiles/Makefile2:107: CMakeFiles/raspimouse_component.dir/all] エラー 2
make: *** [Makefile:141: all] エラー 2
---
Failed   <<< raspimouse [3.64s, exited with code 2]
Aborted  <<< cartographer_ros [3.87s]                             

Summary: 4 packages finished [12.2s]
  1 package failed: raspimouse
  1 package aborted: cartographer_ros
  1 package had stderr output: raspimouse
  4 packages not processed

If you have a solution, I would appreciate it if you could let me know.

ラズパイ側でgit submodule update --initするとき、下記エラーが発生し、raspimouse_driverがクローンできませんでした。

エラーメッセージ

error: Server does not allow request for unadvertised object 0fe807b3bb18058a1bbab2563936b996702ee56e
Fetched in submodule path 'raspimouse_driver', but it did not contain 0fe807b3bb18058a1bbab2563936b996702ee56e. Direct fetching of that commit failed.

コミットIDをたどると、
youtalk/raspimouse2
ではなく
gbiggs/raspimouse2
をクローンしようとし、URLが一致しないためエラーが出ているようです。

修正をお願いします。