How to re-initialize MATLAB Compiler Runtime (MCR) for reuse?

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I am trying to call "mclInitializeApplication" in the same application again to reinitialize MCR, and found that the application hangs without any error even after using "mclTerminateApplication". How can I resolve this issue? 

Accepted Answer

MathWorks Support Team
MathWorks Support Team on 12 Sep 2025
It is recommended to use the functions "mclInitializeApplication" and "mclTerminateApplication" only once per process to avoid any unexpected errors. Re-initializing MCR in the same process can lead to unexpected behavior.
In this case below possible approaches can be followed for the work around -
  • Divide the code into two separate processes and use "mclInitializeApplication" for both the processes
  • If the code permits, use "mclTerminateApplication" in the end rather than re-initializing MCR later.

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