adlink-ros / apriltag_ros Goto Github PK

When including this package in a ROS2 Foxy workspace and running:

rosdep install --from-paths src --ignore-src -r -y

I get:

ERROR: the following packages/stacks could not have their rosdep keys resolved
to system dependencies:
apriltag_ros: Cannot locate rosdep definition for [opencv]
Continuing to install resolvable dependencies...
#All required rosdeps installed successfully

I am running the node but not able to see any detections when I do echo on the /apriltag_detections topic. I am showing the camera some april tag images on my laptop with the correct family. The image topic is /camera/image_raw and I see pixel values when I do echo on that topic.
What could be the issue?

Posting this here as it might help others.
Was able to build this package on Nvidia Jetson AGX Xavier with Jetpack 5.0.2, but with a warning regarding a conflict between different releases of some libopencv packages.

When running the package, the node shut down at once when a tag was detected.
The following error displayed:

[component_container-1] what(): OpenCV(4.5.4) /home/ubuntu/build_opencv/opencv/modules/core/src/matrix.cpp:250: error: (-215:Assertion failed) s >= 0 in function 'setSize'
[component_container-1]
[ERROR] [component_container-1]: process has died [pid 34486, exit code -6, cmd '/opt/ros/foxy/lib/rclcpp_components/component_container --ros-args -r __node:=tag_container -r __ns:=/apriltag']

Solved this issue by cloning and building the foxy branch of the vision_opencv git repo:

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

Using packages built from source rather than binaries seemed to solve the issue.