macOS Sierra, released on September 20th 2016, introduced a compatibility issue with MATLAB.
The issue is related to Language & Region preferences, and it may result in file corruption. Determine if your Language & Region combination requires a patch.
Additional Details
![Available Available](/uploads/1/2/5/7/125763395/964478763.jpg)
I am not having problems with Swing not found, but I do find that on High Sierra, a short time after I start R2018a (apparently successfully), I get a crash. R2017b works for me. I see a hint it might be related to the fact I am using Parallels.
On October 6th MathWorks applied a patch to MATLAB and MATLAB Runtime in the downloadable version of R2016b for Mac.
![Sierra Sierra](https://www.iitk.ac.in/nt/faq/Images/matlab_r2016aMAC/matlab004.png)
No patch is required if you downloaded R2016b after October 6th.
Please contact MathWorks Support with any questions.
Posted by Moira Stephen on 07 October 2016
https://informs.hw.ac.uk/2016/10/07/patch-for-matlab-on-macos-sierra-now-available/