:farmer: launch_testing_examples.check_msgs_launch_test fails to receive messages on the chatter topic
Maintainers usually reply within 1 day
@Yadunund is already working on this.
Since Sep 15, 2026.
Assessment
This issue has not been assessed yet.
Description
Generated by Generative AI
No response
Operating System:
Ubuntu noble
ROS version or commit hash:
Kilted
RMW implementation (if applicable):
No response
RMW Configuration (if applicable):
No response
Client library (if applicable):
No response
'ros2 doctor --report' output
No response
Steps to reproduce issue
- Go to any of the jobs listed below
- Build a job
- See test failing
Expected behavior
To build without error
Actual behavior
Building with test regressions
Additional information
Reference Build
Failing tests
- launch_testing_examples.launch_testing_examples.check_msgs_launch_test.launch_testing_examples.check_msgs_launch_test
Log output
=====================================================================================================================================================================
FAIL: launch_testing_examples.check_msgs_launch_test.TestFixture.test_check_if_msgs_published
---------------------------------------------------------------------------------------------------------------------------------------------------------------------
Traceback (most recent call last):
File "/tmp/ws/src/ros2/examples/launch_testing/launch_testing_examples/launch_testing_examples/check_msgs_launch_test.py", line 45, in test_check_if_msgs_published
with WaitForTopics([('chatter', String)], timeout=15.0):
File "/tmp/ws/install_isolated/launch_testing_ros/lib/python3.12/site-packages/launch_testing_ros/wait_for_topics.py", line 140, in __enter__
raise RuntimeError('Did not receive messages on these topics: ',
RuntimeError: ('Did not receive messages on these topics: ', {'chatter'})
Flakyness 15 days
| job_name | last_fail | first_fail | build_count | failure_count | failure_percentage |
|---|---|---|---|---|---|
| Kci__nightly-zenoh_ubuntu_noble_amd64 | 2026-09-13 | 2026-09-08 | 2 | 2 | 100.0 |
| Kci__nightly-cyclonedds_ubuntu_noble_amd64 | 2026-09-13 | 2026-09-07 | 3 | 3 | 100.0 |
Began to fail in https://build.ros2.org/job/Kci__nightly-cyclonedds_ubuntu_noble_amd64/106, but checking for changes I can't find a specific reason
- Dominant language
- C++
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- Merged PRs (30d)
- 4
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