I'm getting the error in the title when I'm trying to create a publisher or subscriber. The ROS master and the Matlab script run on the same machine.
Matlab can connect to the ROS master and the matlab node is visible when running 'rosnode list'.
rosMaster = "http://192.168.3.10:11311/";
lidarTopic = "/os_cloud_node/points";
segmentedLidarTopic = "/segmentedImages";
sub = rossubscriber(lidarTopic);
pubLidar = rospublisher(segmentedLidarTopic, 'sensor_msgs/Image');
The error happens on both of the last 2 lines of code. I wasn't able to find any information on how to approach this error message.
If anyone can help it would be much appreciated!