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After you post params.yaml, I think there is a possibility this is caused by your putting the params in wrong namespace. For example in the launch file, you specify a node name “sub_node” but in yaml file, your specify as “sub_demo”. You need to match the names of nodes in yaml and launch files
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After you post params.yaml, I think there is a possibility this is caused by your putting the params in wrong namespace. For example in the launch file, you specify a node name “sub_node” but in yaml file, your specify as “sub_demo”. You need to match the names of nodes in yaml and launch filesfiles.
Edit as reply to your comment;
sub_demo:
ros__parameters:
robot_name: "BOT02/"
here your telling that robot_name parameter belongs to node with name sub_demo , but in the launch file your saying
launch_ros.actions.Node(
executable='sub_ex',
package='demo_pkg',
name='sub_node',
parameters=[config]
),
the name of the node is sub_node, they are not matching.
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