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How to convert a ROS message file to an IDL file?

asked 2022-05-18 10:02:51 -0500

StewartHemm74 gravatar image

updated 2022-05-18 10:44:30 -0500

What is the terminal command to convert a ros message file to an idl file?

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answered 2022-05-18 19:02:35 -0500

aprotyas gravatar image

The rosidl_adapter core package exposes both scripts and an API to perform these conversions. For your case, use the msg2idl.py script:

ros2 run rosidl_adapter msg2idl.py /path/to/msg/file

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Thank you!

StewartHemm74 gravatar image StewartHemm74  ( 2022-05-19 12:25:06 -0500 )edit
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answered 2022-05-18 12:15:36 -0500

msmcconnell gravatar image

updated 2022-05-18 12:16:08 -0500

I'm not sure there is a terminal command, however, on build ROS will actually do this for you since its one of the first steps in the message compilation process. Build and install your ROS2 message package and you can find the generated .idl files alongside the original .msg files at

install/<my msgs package>/share/<my msgs package>/msg/<my msg>.idl
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Asked: 2022-05-18 10:02:51 -0500

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Last updated: May 18 '22