ros2/launch_ros

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Tools for launching ROS nodes and for writing tests involving ROS nodes.

Stars: 83
Forks: 107
Open beginner issues: 0
Indexed issues: 55
Avg merge: 22h 6m
Merged PRs (30d): 5

Dominant language: Python
License: Apache-2.0
Last GitHub push: Aug 30, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: help wanted

Beginner friendly Everything

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55 open issues indexed

🧑‍🌾 test_load_node_with_param_file intermittently hangs while loading composable nodes Open

bug

ros2/launch_ros#572 · 1 assignee · Opened Sep 14, 2026
yaml.add_representer in Node._create_params_file_from_dict mutates global yaml.Dumper, corrupting unrelated yaml.dump() calls in the same process Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 84/100

ros2/launch_ros#571 · 1 comment · Opened Sep 9, 2026
:farmer: test_launch_ros: Intermittent test failures due to "Too many open files" Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 45/100

ros2/launch_ros#565 · Opened Aug 20, 2026
:farmer: test_launch_ros.pytest.missing_result intermittently times out with ClassLoader unload warnings (Flaky) Open

bug

ros2/launch_ros#561 · 1 assignee · Opened Aug 5, 2026
0.29.9 introduces a regression on lyrical Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 55/100

ros2/launch_ros#550 · Opened Jul 9, 2026
Feature request: ros2 launch --dump-params to statically export resolved node parameters Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

ros2/launch_ros#549 · 1 reaction · Opened May 13, 2026
Feature: Combined Parameter Substitution Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

ros2/launch_ros#517 · 8 comments · Opened Feb 13, 2026
Add timeout to load_node service call in LoadComposableNodes action Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 35/100

ros2/launch_ros#514 · Opened Jan 28, 2026
LoadComposableNodes should have an option to fail/shutdown if a node fails to load Open

help wanted

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ros2/launch_ros#513 · 6 comments · 2 reactions · Opened Jan 12, 2026
Substitutions not expanding in arguments to Node Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

ros2/launch_ros#512 · Opened Dec 17, 2025
FindPackageLaunch / IncludePackageLaunch Open

enhancement

ros2/launch_ros#502 · 1 assignee · Opened Nov 11, 2025
Allow setting log-level for all nodes without needing to pass `ros_args` Open

enhancement

ros2/launch_ros#501 · 1 assignee · Opened Nov 11, 2025
SetParameter, PushNamespace, SetRemap from commandline Open

enhancement

ros2/launch_ros#500 · 1 assignee · Opened Nov 11, 2025
SetParameter value cannot take a list value, requires special string nesting Open

enhancement

ros2/launch_ros#499 · 2 comments · 1 assignee · Opened Nov 11, 2025
[action.Node] have the name as a property Open

enhancement

ros2/launch_ros#492 · 1 comment · 1 assignee · Opened Sep 19, 2025
Composable Lifecycle components do not auto start correctly due to differences in `node_name` Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 25/100

ros2/launch_ros#479 · 1 comment · Opened Aug 18, 2025
Allow IfElseSubstitution to return lists. Open

enhancement more information needed

ros2/launch_ros#464 · 1 comment · 1 assignee · Opened May 5, 2025
Option to Launch ROS Node Parameters from YAML with Optional Namespace Open

help wanted

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ros2/launch_ros#448 · 6 comments · Opened Mar 12, 2025
Update parameters typing to leverage recursive types Open

help wanted

Difficulty 3/5 1-2 days Newbie friendliness 48/100

ros2/launch_ros#443 · 4 comments · Opened Feb 24, 2025
Feature request: Launch action to make a node wait for its predecessor to publish a topic before starting dependent nodes Open

ros2/launch_ros#434 · 1 comment · 1 assignee · Opened Jan 27, 2025
Feature requests: isolated testings (with ROS_DOMAIN_ID) Open

enhancement help wanted

ros2/launch_ros#432 · 1 comment · 1 assignee · Opened Dec 28, 2024
Namespace doesn't get applied to target container when using load_composable_node tag Open

help wanted

Difficulty 4/5 3-5 days Newbie friendliness 42/100

ros2/launch_ros#428 · 2 comments · Opened Dec 4, 2024
Have SetParametersFromFile override node parameters Open

help wanted question

Difficulty 5/5 Over a week Newbie friendliness 30/100

ros2/launch_ros#422 · 5 comments · Opened Oct 24, 2024
[Bug] String parameter parsed as boolean (when passed as a dictionary to a Node in a launch file) Open

bug

ros2/launch_ros#410 · 3 comments · 1 reaction · 1 assignee · Opened Sep 5, 2024
Allow SetParametersFromFile to take several files Open

help wanted

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ros2/launch_ros#405 · Opened Jul 11, 2024
Document names of frontend action arguments Open

ros2/launch_ros#404 · 1 assignee · Opened Jul 9, 2024
Missing parameters file is not an error Open

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

ros2/launch_ros#401 · Opened Jul 6, 2024
Enable reading Launch Configuration from yaml file Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

ros2/launch_ros#400 · 1 comment · 3 reactions · Opened Jun 26, 2024
Error when setting parameter with list of strings via substitution Open

ros2/launch_ros#383 · 3 comments · 1 reaction · 2 assignees · Opened Oct 22, 2023
Support loading 'arbitrary' YAML files (perhaps just from the XML/YAML front-ends?) Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

ros2/launch_ros#382 · 1 comment · 3 reactions · Opened Oct 9, 2023
Simpler substitution for package files Open

help wanted

Difficulty 5/5 Over a week Newbie friendliness 25/100

ros2/launch_ros#374 · 2 comments · 1 reaction · Opened Aug 15, 2023
SetParameter does not propagate into event handler callback Open

help wanted

Difficulty 4/5 3-5 days Newbie friendliness 38/100

ros2/launch_ros#373 · 1 comment · 1 reaction · Opened Aug 4, 2023
Logger does not respect RCUTILS_CONSOLE_OUTPUT_FORMAT Open

enhancement help wanted

Difficulty 3/5 1-2 days Newbie friendliness 45/100

ros2/launch_ros#368 · 3 comments · Opened Jun 27, 2023
ComposableNodeContainer and respawn=True Open

ros2/launch_ros#361 · 18 comments · 6 reactions · 1 assignee · Opened May 29, 2023
Component Containers on Different ROS_DOMAIN_IDs Fail to Launch Open

ros2/launch_ros#351 · 1 comment · 1 assignee · Opened Feb 2, 2023
Setting name parameter leads to duplicate nodes with same name Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

ros2/launch_ros#342 · 1 comment · Opened Dec 20, 2022
Hang after repeated ctrl+c on Windows Open

bug

ros2/launch_ros#310 · 3 comments · 1 assignee · Opened Apr 8, 2022
Provide more meaningful output on error Open

enhancement help wanted

Difficulty 5/5 Over a week Newbie friendliness 25/100

ros2/launch_ros#291 · 6 comments · 13 reactions · Opened Nov 29, 2021
Launch delay argument for nodes or other launch files Open

enhancement help wanted

Difficulty 5/5 Over a week Newbie friendliness 25/100

ros2/launch_ros#286 · 3 comments · Opened Nov 16, 2021
Support for conditional parameter import from yaml file in XML launch file Open

help wanted

ros2/launch_ros#323 · 14 comments · 4 reactions · 1 assignee · Opened Oct 30, 2021
[launch_ros] use empty name for node namespace when only node name is given Open

enhancement help wanted

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ros2/launch_ros#283 · 1 comment · Opened Oct 27, 2021
consider porting `RewrittenYaml` from Nav2 to allow param overrides to YAML from launch Open

backlog

Difficulty 5/5 Over a week Newbie friendliness 30/100

ros2/launch_ros#258 · 2 comments · 5 reactions · Opened Jul 26, 2021
CLI interface tests Open

enhancement help wanted

Difficulty 3/5 1-2 days Newbie friendliness 45/100

ros2/launch_ros#246 · Opened Jun 13, 2021
Published API documentation Open

enhancement

ros2/launch_ros#232 · 11 comments · 4 reactions · 1 assignee · Opened Apr 22, 2021
Closing launch file if required composable node shuts down Open

enhancement help wanted

Difficulty 4/5 3-5 days Newbie friendliness 45/100

ros2/launch_ros#224 · 3 reactions · Opened Apr 1, 2021
Feature: List arguments recursively Open

backlog duplicate enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

ros2/launch_ros#219 · 1 comment · Opened Mar 1, 2021
ROS2 Launch fails to return GDB session for debugging Open

ros2/launch_ros#165 · 46 comments · 2 reactions · 1 assignee · Opened Aug 3, 2020
Can't write launch tests with composable nodes Open

backlog bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ros2/launch_ros#108 · 1 comment · Opened Dec 17, 2019
Node constructor annotations are too opaque Open

enhancement help wanted

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ros2/launch_ros#64 · 6 comments · Opened Sep 3, 2019
Can't use launch argument for node output Open

bug help wanted

Difficulty 3/5 1-2 days Newbie friendliness 35/100

ros2/launch_ros#46 · 5 comments · Opened Jul 25, 2019

ros2/launch_ros

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