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Hi Gokhan,

It looks like there is some problem with creating ROS messages in your MATLAB installation.

To confirm this, try to create messages before calling rosinit:

rosmessage('std_msgs/String')

rosmessage('std_msgs/UInt32')

Does this work for you?

If it does not work, please check if "rosjava_messages.jar" is listed as one of the files in the output of "javaclasspath".

Thanks, Remo

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