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Saba Hajhassan
Saba Hajhassan on 30 May 2023
Answered: Varun on 27 Dec 2023
I am totally a beginner in programming and Matlab.
I have a big trouble to open a FMU file on Matlab Simulink, sicne the "DYLD_LIBRARY_PATH" is missing on my macOS.
I want to work by adding variable "DYLD_LIBRARY_PATH", I do not know how to launch MATLAB by command line in the terminal added variable "DYLD_LIBRARY_PATH".
I also found this on Mathwork, but I have no idea hot to implement it:
Use the Exported Tool-Coupling FMU
The exported FMU requires a local installation of Simulink to run. The MATLAB version used for cosimulation must be the same as the MATLAB version where the FMU is exported. On Windows®, the application that runs the FMU can check out the required licenses automatically. For other operating systems, apply these settings:
  • On Mac OS:setenv DYLD_LIBRARY_PATH ${DYLD_LIBRARY_PATH}:<InstallationFolder>/bin/maci64:<InstallationFolder>/extern/bin/maci64 (csh/tcsh)
  • export DYLD_LIBRARY_PATH=${DYLD_LIBRARY_PATH}:<InstallationFolder>/bin/maci64:<InstallationFolder>/extern/bin/maci64 (bash)
Could anyone please tell me how I can add it to my macOS via terminal or better said how to launch MATLAB with added variable "DYLD_LIBRARY_PATH, step by step?
  1 Comment
Walter Roberson
Walter Roberson on 31 May 2023
Unfortunately, as of El Capitan, under some conditions DYLD_LIBRARY_PATH is ignored for security reasons.
The official documentation since then has implied that the security reasons should not apply to MATLAB or Simulink, but in practice many people have found that this security "feature" does apply to MATLAB and Simulink (at least when installed in the default locations under /Applications ) .
When this problem is occuring, the work-arounds are not straight-forward... not unless you are willing to disable System Integrity Protection.

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Answers (1)

Varun on 27 Dec 2023
Hi Saba,
Looks like you want to know step by step how to launch the MATLAB after setting up "DYLD_LIBRARY_PATH" environment variable.
Please follow below steps:
1) Open the Bash Terminal application on your macOS. To open it, open the Launchpad app. Type in "terminal" and click "Terminal".
Alternatively, you can find it in the Applications > Utilities folder.
2) Know the folder where the MATLAB is installed. Usually, the MATLAB is in the Applications folder, you might use:
3) Use the "export" command to set the "DYLD_LIBRARY_PATH" variable as shown below:
Make sure to replace "R20XXx" with your MATLAB version.
4) Launch the MATLAB from same terminal:
These steps should help you launch the MATLAB with DYLD_LIBRARY_PATH env. variable being set on macOS.


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