如何修复 rosdep ERROR: Rosdep experienced an error: 'list' object has no attribute 'encode'

问题

运行 rosdep update 时出现以下错误:

rosdep_output.txt
reading in sources list data from /opt/openrobots/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
Add distro "ardent"

ERROR: Rosdep experienced an error: 'list' object has no attribute 'encode'
Please go to the rosdep page [1] and file a bug report with the stack trace below.
[1] : http://www.ros.org/wiki/rosdep

rosdep version: 0.10.30

Traceback (most recent call last):
  File "/opt/openrobots/lib/python3.12/site-packages/rosdep2/main.py", line 126, in rosdep_main
    exit_code = _rosdep_main(args)
                ^^^^^^^^^^^^^^^^^^
  File "/opt/openrobots/lib/python3.12/site-packages/rosdep2/main.py", line 286, in _rosdep_main
    return _no_args_handler(command, parser, options, args)
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/openrobots/lib/python3.12/site-packages/rosdep2/main.py", line 294, in _no_args_handler
    return command_handlers[command](options)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/openrobots/lib/python3.12/site-packages/rosdep2/main.py", line 467, in command_update
    update_sources_list(success_handler=update_success_handler,
  File "/opt/openrobots/lib/python3.12/site-packages/rosdep2/sources_list.py", line 438, in update_sources_list
    retval.append((rds, write_cache_file(sources_cache_dir, dist['distribution'], rosdep_data)))
                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/openrobots/lib/python3.12/site-packages/rosdep2/sources_list.py", line 493, in write_cache_file
    key_hash = compute_filename_hash(filename_key)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/openrobots/lib/python3.12/site-packages/rosdep2/sources_list.py", line 479, in compute_filename_hash
    sha_hash.update(filename_key.encode())
                    ^^^^^^^^^^^^^^^^^^^
AttributeError: 'list' object has no attribute 'encode'

解决方案

此问题出现是因为你使用的是旧版且过时的 rosdep - 可能是因为你从 robotpkg 仓库安装了 rosdep 0.10.30。要修复此问题,你需要rosdep 升级到最新版本:

install_rosdep.sh
sudo apt install python3-rosdep

之后,检查是否正在使用新版本。如果没有,你可能需要卸载旧版本。

升级 rosdep 后,你可以再次运行 rosdep update,错误应该会解决。


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