无法在运行Ubuntu21.10的RPI 4上安装ROS2 Foxy

Question

我无法运行命令sudo apt install ros-foxy-desktop。按照这里的指南：https://docs.ros.org/en/foxy/Installation/Ubuntu-Install-Debians.html。我能够完成所有的步骤，直到最后安装，这会产生这些错误。

任何帮助都将不胜感激。我已经试过按指南安装https://docs.ros.org/en/foxy/Installation/Ubuntu-Development-Setup.html了。是因为我运行的是ubuntu21.10桌面，需要运行20.04服务器吗？我在20.04服务器上遇到的问题是，我无法连接到我在wifi的大学，wifi使用PEAP，我不知道如何与服务器连接到wifi。

Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 ros-foxy-action-msgs : Depends: libpython3.8 (>= 3.8.2) but it is not installable
                        Depends: ros-foxy-unique-identifier-msgs but it is not going to be installed
 ros-foxy-action-tutorials-interfaces : Depends: libpython3.8 (>= 3.8.2) but it is not installable
 ros-foxy-actionlib-msgs : Depends: libpython3.8 (>= 3.8.2) but it is not installable
 ros-foxy-builtin-interfaces : Depends: libpython3.8 (>= 3.8.2) but it is not installable
 ros-foxy-composition-interfaces : Depends: libpython3.8 (>= 3.8.2) but it is not installable
 ros-foxy-demo-nodes-cpp-native : Depends: ros-foxy-fastrtps but it is not installable
                                  Depends: ros-foxy-rmw-fastrtps-cpp but it is not installable
 ros-foxy-depthimage-to-laserscan : Depends: libopencv-core4.2 (>= 4.2.0+dfsg) but it is not installable
                                    Depends: ros-foxy-image-geometry but it is not going to be installed
 ros-foxy-diagnostic-msgs : Depends: libpython3.8 (>= 3.8.2) but it is not installable
...
 ros-foxy-std-srvs : Depends: libpython3.8 (>= 3.8.2) but it is not installable
 ros-foxy-stereo-msgs : Depends: libpython3.8 (>= 3.8.2) but it is not installable
 ros-foxy-tf2-msgs : Depends: libpython3.8 (>= 3.8.2) but it is not installable
 ros-foxy-tf2-py : Depends: libpython3.8 (>= 3.8.2) but it is not installable
 ros-foxy-trajectory-msgs : Depends: libpython3.8 (>= 3.8.2) but it is not installable
 ros-foxy-turtlesim : Depends: libpython3.8 (>= 3.8.2) but it is not installable
 ros-foxy-visualization-msgs : Depends: libpython3.8 (>= 3.8.2) but it is not installable
E: Unable to correct problems, you have held broken packages.```

Answer 1

目前，Foxy是为20.04构建的，因此没有您可以安装的21.04版本。要么安装20.04，要么运行某种容器(即码头)。

至于PEAP身份验证，我可能会查看this askubuntu线程。