On Thu, May 26, 2011 at 4:29 AM, Tien Thanh <nttputus@gmail.com> wrote:

Hi Ben,

I added all the folder ipc_bridge to Matlab path and rerun the example again, but this time I got error like this (in Matlab terminal)
Warning: Directory access failure: /bin/bash.

> In path at 110
In addpath at 87
In example_publisher at 9
Warning: Name is nonexistent or not a directory: rospack.
> In path at 110
In addpath at 87

In example_publisher at 9
Warning: Name is nonexistent or not a directory: command not found/bin.
> In path at 110
In addpath at 87
In example_publisher at 9

??? Invalid MEX-file '/opt/ros/diamondback/stacks/ipc-bridge/ipc_msgs/ipc_geometry_msgs/bin/geometry_msgs_Twist.mexa64': libipc.so:
cannot open shared object file: No such file or directory.

Error in ==> example_publisher at 13
pid=geometry_msgs_Twist('connect','publisher','example_module','twist');

I also include a part of my Matlab in file "path" attached in this mail.

Thanks for any help.

Best,
On Wed, May 25, 2011 at 6:45 PM, Benjamin Cohen <bencohen2@gmail.com> wrote:
Hey Tien,

It seems like your matlab path is screwed up. Can you post your matlab path here? You can get the path by running "path".thanks,
-- ben
On Wed, May 25, 2011 at 9:07 AM, Tien Thanh <nttputus@gmail.com> wrote:
Hi Cohen,

It not worked with me, I can find the example_topic that list in the rostopic but the rostopic echo shows nothing and I got an error when execute example_publisher.m in Matlab
Warning: Directory access failure: /bin/bash.
> In path at 110
In addpath at 87

In example_publisher at 9
Warning: Name is nonexistent or not a directory: rospack.
> In path at 110

In addpath at 87
In example_publisher at 9
Warning: Name is nonexistent or not a directory: command not found/bin.

> In path at 110
In addpath at 87
In example_publisher at 9

??? Undefined function or method 'geometry_msgs_Twist' for input arguments of type 'char'.

Error in ==> example_publisher at 13
pid=geometry_msgs_Twist('connect','publisher','example_module','twist');

Thanks for any help.

Best,
On Wed, May 25, 2011 at 10:27 AM, Nikos Mitsou <nmitsou@lsr.ei.tum.de> wrote:
Yes, publisher and subscriber are working fine!
Thanks for the effort
Nikos
On 05/23/2011 11:26 PM, Benjamin Cohen wrote:
Nikos,

Actually, that part of the tutorial is outdated. No bin folders should have been created in those folders. The bin folders should only be created in the ipc_[...]_msgs folders such as ipc_msgs/ipc_geometry_msgs/.

I'll update the tutorial. Have you tried the example publisher/subscriber?

-- ben

On Mon, May 23, 2011 at 4:26 AM, Nikos Mitsou <nmitsou@lsr.ei.tum.de> wrote:

Hello all

I tried to install the interoperability system between Matlab and Ros.
(https://alliance.seas.upenn.edu/~meam620/wiki/index.php?n=Roslab.IpcBridge)

I followed the instructions and the compilation of the packages produced no error.
According to the instructions, bin folders should have been created e.g.
ipc_bridge_ros/binipc_bridge_matlab/bin
but are actually missing.
Has anyone experienced something similar?

Thanks
Nikos

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