colcon build error using dockerfile

[rob-pointcloud]

Hi Nvidia team, first a huge thanks for creating and sharing these packages in ROS, I'm very excited to get this working and start development 😄

I am using a Jetson Xavier NX.

• I flashed the SD card with the latest Jetpack 4.6 downloaded online.
• I followed the directions here
  • I created a "workspaces/isaac_ros_common" directory, and git cloned the two required packages
  • I ran "isaac_ros_common/scripts/run_dev.sh ", which completed succesfully

However, when I tried to build for the first time:

cd /workspaces/isaac_ros-dev colcon build && . install/setup.bash

I received the following error:

admin@XavierNX:/workspaces/isaac_ros-dev$ colcon build && . install/setup.bash Starting >>> isaac_ros_nvengine_interfaces Starting >>> isaac_ros_test Starting >>> isaac_ros_common
Finished <<< isaac_ros_test [3.20s]
Finished <<< isaac_ros_common [23.8s]
Finished <<< isaac_ros_nvengine_interfaces [31.7s]
Starting >>> isaac_ros_nvengine Starting >>> isaac_ros_dnn_encoders
--- stderr: isaac_ros_nvengine
/usr/bin/ld:/workspaces/isaac_ros-dev/src/isaac_ros_common/isaac_ros_nvengine/gxf/lib/gxf_jetpack46/core/libgxf_core.so: file format not recognized; treating as linker script /usr/bin/ld:/workspaces/isaac_ros-dev/src/isaac_ros_common/isaac_ros_nvengine/gxf/lib/gxf_jetpack46/core/libgxf_core.so:1: syntax error collect2: error: ld returned 1 exit status make[2]: [libgxe_node.so] Error 1 make[1]: [CMakeFiles/gxe_node.dir/all] Error 2 make: *** [all] Error 2

Failed <<< isaac_ros_nvengine [21.0s, exited with code 2] Aborted <<< isaac_ros_dnn_encoders [57.5s]

Summary: 3 packages finished [1min 30s] 1 package failed: isaac_ros_nvengine 1 package aborted: isaac_ros_dnn_encoders 1 package had stderr output: isaac_ros_nvengine 5 packages not processed admin@XavierNX:/workspaces/isaac_ros-dev$

Any help would be much appreciated!

[hemalshahNV]

Thanks for making use of the work! We’re excited to see what you do with it.

Did you happen to install git-lfs first before cloning the repository? In the troubleshooting section of the README, you should find the above error (actually, it is in another repository README, will copy into here as well for easy access). There are binaries we host in the git repository through git-lfs. The error is because those files have not been downloaded and only the placeholder text file is present.

Running “git lfs pull” should get git-lfs to pull down the files.

[rob-pointcloud]

:man_facepalming: doh! sorry about that, not sure how I missed it! I had installed git lfs on my Xavier NX, but I had not run the "git lfs pull" in the docker container before the build, that fixed the issue!