Unable to load a .stl into file solid (MATLAB R2021a)

I have been trying to load a .stl file into MATLAB simulink as a file solid using the simscape multibody library. Whenever I do this, the following error message appears in the diagnostic viewer:

"Attempt to modify 'sm_lib' which is a locked (read-only) library"

I have tried to unlock 'sm_lib', but so far my efforts have been unsuccessful. What would be the recommended next steps towards adding this solid into my simulink model?

Answer 1

[Animesh]

Hey @Theodore Bien,

Seems like you are unable to unlock the "sm_lib" library.

You can use the following command to do so:

set_param('sm_lib', 'Lock', 'off');

Additionally, you can refer to the following MATLAB Answer for an alternative method to unlock a library:

https://www.mathworks.com/matlabcentral/answers/360625