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christianrauch avatar christianrauch commented on July 30, 2024

I haven't encountered this error nor do I have the hardware to test this. Could you provide a full backtrace of the error?

Btw, it makes it easier to read if you format code and terminal output as "code" (via backticks).

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christianrauch avatar christianrauch commented on July 30, 2024

There is not enough information to debug this issue. It is unclear if this is an issue with the apriltag library or this node.

I suggest that you install the dbgsym packages for OpenCV and any other libraries in the stack.

I am closing this for now. If this occurs again, please reopen the issue and provide a detailed backtrace and maybe a reproducible example with a bag file.

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orjano-max avatar orjano-max commented on July 30, 2024

Posting here as i had a similar issue and my solution might help others that are stuck with this.

Using

  • Nvidia AGX Xavier
  • Jetpack 5.0.2
  • ROS2 Foxy.

Encountered the issue described in #2, did the fix, but got complaints about missing apriltag_msgs.
Decided to use the following git repo which is inspired by this one(but has a foxy branch and contains apriltag_msgs package): https://github.com/Adlink-ROS/apriltag_ros

Successfully built packages and got the issue described by @trentatsa here.

Solved this issue by cloning and building the vision_opencv packages from source and using these instead of binaries:

https://github.com/ros-perception/vision_opencv

Of course using the foxy branch as it corresponds to the ROS2 distro i am using.

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christianrauch avatar christianrauch commented on July 30, 2024

Encountered the issue described in #2, did the fix, but got complaints about missing apriltag_msgs.

FYI, it is here: https://github.com/christianrauch/apriltag_msgs. I should probably document the installation from source.

Solved this issue by cloning and building the vision_opencv packages from source and using these instead of binaries:

Thanks for the tip. I assume that other packages using vision_opencv (or cv_bridge specifically) would also exhibit this issue.

Can it be that there are multiple versions of OpenCV installed on your system? If you have multiple versions of OpenCV installed and libcv_bridge.so selects the wrong one, then this is likely causing this issue. Make sure to only have the OpenCV version installed that is also used by the ros-$ROS_DISTRO-cv-bridge package.

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orjano-max avatar orjano-max commented on July 30, 2024

@christianrauch Yeah, Jetpack 5.0.2 comes with opencv 4.5.4 preinstalled, ref: https://developer.nvidia.com/embedded/vpi
Which might cause problems.

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