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What am I doing wrong when using matlab and ros?

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Serj Titov
Serj Titov 2016-11-24
评论： Shubham Jena 2018-6-5
I want start roscore in terminal ubuntu and creat node in matlab. I have "Error creating the node /matlab_global_node_" when use rosinit. What am I doing wrong? Thanks
  2 个评论
bio lim
bio lim 2016-11-26
编辑：bio lim 2016-11-26
Have you checked that you installed the Robotics Toolbox correctly? Can you see it in the list of the toolboxes you installed? If so, are the MATLAB and the roscore running on different platforms?
Serj Titov
Serj Titov 2016-11-29
when i use command "ver" in the list of installed toolboxes is "Robotics System Toolbox". MATLAB and roscore running on the same computer. if i start "rosinit" in matlab like master - global node created correctly. But when i start "roscore" in terminal and use "rosinit" in matlab - "Error creating the node /matlab_global_node_".

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回答（1 个）

bio lim
bio lim 2016-11-30
When you start ROS on your terminal using roscore, check out the section:
ROS_MASTER_URI=http://XXXX:11311/
where XXXX is your computer name.
Then on your MATLAB, try setting as follows:
setenv('ROS_MASTER_URI', 'http://XXXX:11311/');
rosinit('NodeName', '/Matlab');
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Serj Titov
Serj Titov 2016-12-6
I started roscore in terminal. Started MATLAB. Use in MATLAB:
rosinit('http://192.168.42.105')
and I have error "Port -1 is invalid. It needs to be positive. Check if it is correctly defined."
It my terminal with running roscore (may be it's help you):

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