Simulink fails to create ROS subscriber
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I am trying to subscribe to a topic using the subscriber block in Simulink and I am getting the error shown in the attached image. I created the custom message and it appears in the command window when I do rosmsg list, so I don't know why it says it can't find that message in the library. Maybe there is something else I need to add so Matlab finds the generated message. I am using Matlab 2020b.
Cam Salzberger on 29 Jan 2021
This may be because you have conflicting libraries on your platform's library path. It may be related to this bug, or this one, that were both fixed in R2020b Update 3. Try getting the latest update and see if that resolves the issue.
Also see here for a similar issue with suggested resolutions. Though that question is regarding ROS 2, similar issues may be found in ROS 1.