Error when using Simulink: "slCustomi​zer.static​Refresh" unrecognized field name "obj" on Mac

45 views (last 30 days)
I started using Matlab R2021b + Simulink a couple of days ago on my Mac. I used it in multiple projects and it was working fine.
Now I am having some problems when using Simulink. When starting I get the following message in the Command Window combined with a refresh of my Simulink Menubar:
caught exception in slsvXtesterFEVALWithDeferredCtrlCHandling.
It happens nearly every time I try to do anything in a existing or blank model (I can't open the Modelsettings - they crash too). It's quite unusable this way.
I tried to reinstall Matlab + Simulink without success. I also tried:
rehash toolboxcache
Which did not fix the problem. I tried to run:
This resulted in a more specific error:
An error occurred during Simulink customization.
Caused by:
Error using slCustomizer.staticRefresh
Unrecognized field name "obj".
Does anyone have an idea on how to fix this problem?

Sign in to comment.

Accepted Answer

Ananya Tewari
Ananya Tewari on 21 Oct 2021
This issue can be caused by a sporadic corruption of a file related to data dictionaries associated with libraries.
On your machine, please go to the MATLAB "prefdir" and then navigate into a directory called "SLLibraryLinkageData". This directory should contain a MAT file named "LibraryLinkageCache.mat". Please delete this file and restart MATLAB.

Sign in to comment.

More Answers (0)


Find more on Simulink Environment Customization in Help Center and File Exchange




Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!