8000 Accessing numerical parameter causes exception · Issue #337 · ros2/launch_ros · GitHub
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Accessing numerical parameter causes exception #337

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wep21 opened this issue Dec 3, 2022 · 0 comments · Fixed by #338
Closed

Accessing numerical parameter causes exception #337

wep21 opened this issue Dec 3, 2022 · 0 comments · Fixed by #338

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@wep21
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wep21 commented Dec 3, 2022

Bug report

Required Info:

  • Operating System:
    • Ubuntu 22.04
  • Installation type:
    • binaries
  • Version or commit hash:
    • ros-humble-launch-ros:
      Installed: 0.19.3-1jammy.20221108.174822
      Candidate: 0.19.3-1jammy.20221108.174822
      Version table:
      *** 0.19.3-1jammy.20221108.174822 500
      500 http://packages.ros.org/ros2/ubuntu jammy/main amd64 Packages
      100 /var/lib/dpkg/status
  • DDS implementation:
    • cyclonedd
  • Client library (if applicable):

Steps to reproduce issue

<launch>
  <set_parameter name="foo" value="1.0" />
  <log message="$(param foo)" />
</launch>

Expected behavior

[INFO] [launch]: All log files can be found below /home/daisuke/.ros/log/2022-12-03-21-47-40-384872-npc2007011-28977
[INFO] [launch]: Default logging verbosity is set to INFO
[INFO] [launch.user]: 1.0

Actual behavior

❯ ros2 launch test.launch.xml
[INFO] [launch]: All log files can be found below /home/daisuke/.ros/log/2022-12-03-21-48-18-159550-npc2007011-29116
[INFO] [launch]: Default logging verbosity is set to INFO
[ERROR] [launch]: Caught exception in launch (see debug for traceback): sequence item 0: expected str instance, float found

Additional information

Feature request

Feature description

Implementation considerations
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fix: return text value to avoid exception wep21/launch_ros
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@wep21
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