How to solve the mech_import error for SimMechanics?

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Dear Matlab/Simulink users,
I've a question regarding the SimMechanics links module. I installed the link module of Simmechanics for Matlab 2012b succesfully. Then I registered and linked the SimMechanics Link software as SolidWorks add-in. Now i have a model (the robot example model) in Solidworks which i want to export to SimMechanics. So I go to the add-in tool and press Export -> Simmechanics Second Generation. When I tried to open the model in Matlab with the command: mech_inport('sm_robot.xml') it constantly gives the following errors:
"XML Read error" while attempting to read file "sm_robot.xml".
Error in C:\Program Files\MATLAB\R2012b\toolbox\physmod\mech\importer\+PMImport\@ModelReader\ModelReader.p>ModelReader.ModelReader (line 33)
Error in C:\Program Files\MATLAB\R2012b\toolbox\physmod\mech\importer\+PMImport\@ModelUpdater\ModelUpdater.p>ModelUpdater.ModelUpdater (line 16)
Error in C:\Program Files\MATLAB\R2012b\toolbox\physmod\mech\importer\+PMImport\pmiu_import.p>pmiu_import (line 73)
Error in mech_import (line 97)
PMImport.pmiu_import(varargin{:});
When I check the folder where i saved the export model, there is only a XML document and no STL files. Maybe that is the problem? How can i solve it?
Thank you a lot in advance!
Kind regards,
H. Timmermans
  1 Comment
Walter Roberson
Walter Roberson on 7 Nov 2012
Please use better tags for this question; the tags you have used are all products, which should go in the Product field. See http://www.mathworks.co.uk/matlabcentral/answers/43073-a-guide-to-tags

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Accepted Answer

Noor Zeid
Noor Zeid on 24 Jun 2016
I think you should use smimport('model_name.xml') command for second generation

More Answers (3)


Adrian Hernandez
Adrian Hernandez on 18 May 2016
Dear Huub Timmermans Can you solve your problem?
I have the same problem but I've the STL documents and XML. I can't solve this.
  1 Comment
Tamara Miteva
Tamara Miteva on 11 Jun 2016
Dear Adrian Hernandez did you solve the problem? I have the same problem..

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Luu Quan
Luu Quan on 21 Feb 2017
I think when you export SimMechanics from Solidworks file, you must chose Simscape Multibody First Generation (1G) instead of Simscape Multibody...
  1 Comment
Châu Trung Tín
Châu Trung Tín on 9 Mar 2019
Dear Luu Quan, My solidworks have Simscape Multibody First/Second generation. It only have Simscape Multibody... So how can I see Simscape Multibody First/Second generation. Thanks so much. I am looking forward your answer.

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