I'm using ROSBridgelb to publish "OccupancyGrid Message" from Unity to ROS. However I'm always getting the "Received a message without op" error. I made sure that there is no problem with all brackets, quotation marks, commas and periods. Any help?
A screenshot of the error can be found here: https://drive.google.com/open?id=1NDKhzGVqHdwRJiR78YarVofdzoGBGIlD
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