Error using ros2genmsg("custom")

2023 11 3
2 个回答
回答已采纳
更新时间：2024 9 6
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Hello, I am following this Matlab example: Control a simulated UAV using ros2 and PX4 bridge
When running the command:
ros2genmsg("custom")
it returns the error:
>> ros2genmsg("custom")
Identifying message files in folder '/Users/xxxx/MATLAB/xxxx/custom'..Validating message files in folder '/Users/xxxx/MATLAB/xxxx/custom'..Done.
Done.
[1/1] Generating MATLAB interfaces for custom message packages... Done.
Running colcon build in folder '/Users/xxxx/MATLAB/xxxx/custom/matlab_msg_gen/maca64'.
Build in progress. This may take several minutes...Error using ros.internal.ROSProjectBuilder/buildPackage
Error building package: build_log.
Error in ros2genmsg (line 467)
buildPackage(builder, [], ' --merge-install', colconMakeArgs);
Any help?
Similar posts didn't help to get this fixed.
I am on Matlab 2023b for macOS.
Thanks!

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 采纳的回答

Panos
Panos 2023-11-24

0 个投票

Issue resolved by Mathworks support team. This is the solution,
This issue appears to be caused by a small syntax error in the code within the "px4_msgs" folder.
As a workaround, could you please do the following:
1. In the MATLAB command window, unzip the "px4_msgs" folder:
unzip("px4_msgs.zip")
2. Navigate to px4_msgs/msg/VehicleCommand.msg file, and open it
3. Scroll to the end of line numbers 40 and 41 in VehicleCommand.msg, and remove the "*/" symbols from both lines
4. Run "ros2genmsg("custom")" again
This worked for me.
Thanks

更多回答（1 个）

harunkurtdev
harunkurtdev 2024-9-6

0 个投票

I getting error like this.
-- Generating done -- Build files have been written to: C:/Users/Harun/Documents/MATLAB/Examples/R2024a/uav_ros/ControlASimulatedUAVUsingROS2AndPX4BridgeExample/custom/matlab_msg_gen/win64/build/px4_msgs ninja: error: Stat(C:/Users/Harun/Documents/MATLAB/Examples/R2024a/uav_ros/ControlASimulatedUAVUsingROS2AndPX4BridgeExample/custom/matlab_msg_gen/win64/build/px4_msgs/rosidl_typesupport_fastrtps_c/px4_msgs/msg/detail/autotune_attitude_control_status__rosidl_typesupport_fastrtps_c.h): Filename longer than 260 characters

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