Ros bridge does not translate service messages

[Schloern93]

Hallo,

i have created a Ros1 service and a Ros2 service according to the following instructions Ros1: http://wiki.ros.org/ROS/Tutorials/WritingServiceClient%28c%2B%2B%29 Ros2: https://index.ros.org/doc/ros2/Tutorials/Writing-A-Simple-Cpp-Service-And-Client/

I have now built the bridge in a separate package as follows.

1. source Ros2 environment
2. source Ros1 environment 4 Source Service package ros1
3. source service package ros2
4. building the Ros bridge in the separate package Then I started the Ros bridge as described in the manual. For the examples of the subscriber and the publisher the bridge works. But if I start the service over Ros1 and the client over Ros 2 I can't receive any messages. I have attached screenshots of the terminals for starting the bridge and the service Did I do something wrong when I built the bridge? Many thanks in advance

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[iuhilnehc-ynos]

@Schloern93

Please make sure checking the pairs information will show the following message

$ ros2 run ros1_bridge dynamic_bridge --print-pairs | grep begin
  - 'example_interfaces/srv/AddTwoInts' (ROS 2) <=> 'beginner_tutorials/AddTwoInts' (ROS 1)

Did I do something wrong when I built the bridge?

Yes, I think that you could rebuild example_interfaces after appending a mapping rule for your test into mapping_rules.yaml

-
  ros1_package_name: 'beginner_tutorials'
  ros1_service_name: 'AddTwoInts'
  ros2_package_name: 'example_interfaces'
  ros2_service_name: 'AddTwoInts'

[Schloern93]

I solved the problem. The problem was that I had built the ros1 workspace on kinetic. After I rebuilt it with melodic and built the ros_bridge it worked. The bridge now translates the messages to the ros kinetic workspace on my resberry pi.

[supergirl-os]

I built the ros_bridge on noetic, but it appears the same problem like you. I wonder if this is because the wrong vesion of ros. Or could you please tell me exactly how you solved this problem?