rosdep init cannot download default sources list

[oridong]

the issue mirror: https://github.com/ros-planning/moveit/issues/2465

ROS Distro: [Noetic] OS Version: VMware16.0.0 build-16894299 + Ubuntu 20.04 Source build

when I try to install according to "https://moveit.ros.org/install/source/" every step succeeds until this step "rosdep install -y --from-paths src --ignore-src --rosdistro ${ROS_DISTRO}" produces

rosdep install -y --from-paths src --ignore-src --rosdistro noetic ERROR: the following packages/stacks could not have their rosdep keys resolved to system dependencies: moveit_ros_visualization: Cannot locate rosdep definition for [pkg-config] pilz_industrial_motion_planner: Cannot locate rosdep definition for [liborocos-kdl-dev] moveit_ros_occupancy_map_monitor: Cannot locate rosdep definition for [eigen] moveit_commander: Cannot locate rosdep definition for [python3] rviz_visual_tools: Cannot locate rosdep definition for [libqt5x11extras5-dev] moveit_core: Cannot locate rosdep definition for [liborocos-kdl-dev] moveit_resources_prbt_support: Cannot locate rosdep definition for [eigen] geometric_shapes: Cannot locate rosdep definition for [libqhull] moveit_ros_planning: Cannot locate rosdep definition for [eigen] moveit_setup_assistant: Cannot locate rosdep definition for [yaml-cpp] moveit_tutorials: Cannot locate rosdep definition for [eigen] moveit_ros_perception: Cannot locate rosdep definition for [opengl] moveit_ros_planning_interface: Cannot locate rosdep definition for [python3] moveit_ros_manipulation: Cannot locate rosdep definition for [eigen] moveit_kinematics: Cannot locate rosdep definition for [liborocos-kdl-dev]

rosdep update passed

d@ubuntu:~/Robotic/ws_moveit$ rosdep update reading in sources list data from /etc/ros/rosdep/sources.list.d Query rosdistro index https://raw.githubusercontent.com/ros/rosdistro/master/index-v4.yaml Skip end-of-life distro "ardent" Skip end-of-life distro "bouncy" Skip end-of-life distro "crystal" Add distro "dashing" Add distro "eloquent" Add distro "foxy" Skip end-of-life distro "groovy" Skip end-of-life distro "hydro" Skip end-of-life distro "indigo" Skip end-of-life distro "jade" Add distro "kinetic" Skip end-of-life distro "lunar" Add distro "melodic" Add distro "noetic" Add distro "rolling" updated cache in /home/d/.ros/rosdep/sources.cache

[cottsay]

There should be more lines near the beginning of the output of rosdep update:

reading in sources list data from /etc/ros/rosdep/sources.list.d
Hit https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/osx-homebrew.yaml
Hit https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/base.yaml
Hit https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/python.yaml
Hit https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/ruby.yaml
Hit https://raw.githubusercontent.com/ros/rosdistro/master/releases/fuerte.yaml
Query rosdistro index https://raw.githubusercontent.com/ros/rosdistro/master/index-v4.yaml
Skip end-of-life distro "ardent"
Skip end-of-life distro "bouncy"
Skip end-of-life distro "crystal"
Add distro "dashing"
Add distro "eloquent"
Add distro "foxy"
Skip end-of-life distro "groovy"
Skip end-of-life distro "hydro"
Skip end-of-life distro "indigo"
Skip end-of-life distro "jade"
Add distro "kinetic"
Skip end-of-life distro "lunar"
Add distro "melodic"
Add distro "noetic"
Add distro "rolling"
updated cache in ~/.ros/rosdep/sources.cache

I think something is up with your /etc/ros/rosdep/sources.list.d/20-default.list. You could try removing it, and re-running sudo rosdep init.

[oridong]

There should be more lines near the beginning of the output of rosdep update:

I think something is up with your /etc/ros/rosdep/sources.list.d/20-default.list. You could try removing it, and re-running sudo rosdep init.

yes, the true matter is that " sudo rosdep init"fails, although "wget https://raw.github.com/ros/rosdistro/master/rosdep/sources.list.d/20-default.list" succeeds, and make it convenience to copy 20-default.list to /etc/ros/rosdep/sources.list.d/。 so I naively think I can skip the first "init "step.What else should I do to circumvent the first step, because it always produce

ERROR: cannot download default sources list from: https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/sources.list.d/20-default.list Website may be down.

[cottsay]

For now, you should be able to work around the issue by running:

sudo wget -O /etc/ros/rosdep/sources.list.d/20-default.list https://raw.github.com/ros/rosdistro/master/rosdep/sources.list.d/20-default.list
rosdep update

The error is originating here: https://github.com/ros-infrastructure/rosdep/blob/ac8484eb382302c5ab8f72355cfd0dce4474e542/src/rosdep2/main.py#L580-L588

The thing that's confusing me is that rosdep update should halt if there isn't anything under /etc/ros/rosdep/sources.list.d, so there must be an empty file there: https://github.com/ros-infrastructure/rosdep/blob/2667916b87c77e9386b93bae93bc843d4c20eab4/src/rosdep2/main.py#L632-L635

The rosdep init error your're seeing happens before any files are created, so rosdep didn't create any files in there. Did you put an empty file in there manually?

---

Now to get to the bottom of why rosdep init is failing to begin with, the download is happening here: https://github.com/ros-infrastructure/rosdep/blob/ac8484eb382302c5ab8f72355cfd0dce4474e542/src/rosdep2/sources_list.py#L339-L342

This looks like a pretty plain urlopen operation, so I can't imagine why it's failing when wget is working just fine. Both the raw.github.com and raw.githubusercontent.com URLs are working OK for me. Can you tell me about the environment you're running? Is it just plain Ubuntu 20.04 running in a VM?

Also, is it possible the problem was intermittent? I see that there was an incident at Github several hours before this ticket was opened: https://www.githubstatus.com/history Have you tried sudo rosdep init recently?

[cottsay]

Ah, I just had a thought. Are you using a proxy that might be configured in your environment variables? Try this:

sudo -E rosdep init

[oridong]

Ah, I just had a thought. Are you using a proxy that might be configured in your environment variables? Try this:

sorry , I do use proxy ,if not I cannot visit because of Network regulation. but just now , I succeed by the following.

sudo apt-get install ca-cacert sudo c_rehash /etc/ssl/certs sudo update-ca-certificates after these, everything goes well

d@ubuntu:~/Robotic/ws_moveit$ sudo -E rosdep init https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/sources.list.d/20-default.list ERROR: default sources list file already exists: /etc/ros/rosdep/sources.list.d/20-default.list Please delete if you wish to re-initialize d@ubuntu:~/Robotic/ws_moveit$ sudo mv /etc/ros/rosdep/sources.list.d/20-default.list /etc/ros/rosdep/sources.list.d/20-default.list-bak d@ubuntu:~/Robotic/ws_moveit$ sudo -E rosdep init https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/sources.list.d/20-default.list Wrote /etc/ros/rosdep/sources.list.d/20-default.list Recommended: please run

rosdep update

d@ubuntu:~/Robotic/ws_moveit$ rosdep update reading in sources list data from /etc/ros/rosdep/sources.list.d Hit https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/osx-homebrew.yaml Hit https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/base.yaml Hit https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/python.yaml Hit https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/ruby.yaml https://raw.githubusercontent.com/ros/rosdistro/master/releases/fuerte.yaml 1500.0 Hit https://raw.githubusercontent.com/ros/rosdistro/master/releases/fuerte.yaml Query rosdistro index https://raw.githubusercontent.com/ros/rosdistro/master/index-v4.yaml Skip end-of-life distro "ardent" Skip end-of-life distro "bouncy" Skip end-of-life distro "crystal" Add distro "dashing" Add distro "eloquent" Add distro "foxy" Skip end-of-life distro "groovy" Skip end-of-life distro "hydro" Skip end-of-life distro "indigo" Skip end-of-life distro "jade" Add distro "kinetic" Skip end-of-life distro "lunar" Add distro "melodic" Add distro "noetic" Add distro "rolling" updated cache in /home/d/.ros/rosdep/sources.cache

now the issue is solved.

[yeamu]

Ah, I just had a thought. Are you using a proxy that might be configured in your environment variables? Try this:啊，我只是想到了一个想法。您是否使用可能在环境变量中配置的代理？尝试这个：

sudo -E rosdep init

nice thanks

[roboticszeng]

Ah, I just had a thought. Are you using a proxy that might be configured in your environment variables? Try this:

sudo -E rosdep init

thanks!

[Sologala]

Ah, I just had a thought. Are you using a proxy that might be configured in your environment variables? Try this:

sudo -E rosdep init

Hero!!!

[TienVuHong]

Ah, I just had a thought. Are you using a proxy that might be configured in your environment variables? Try this:

sudo -E rosdep init

It work for me, thanks very much