Matlab 2019b does not start on MacOs Mojave neither Catalina

One collegue of mine installed Matlab 2019b on Mojave MacOs system.

It has worked for few days, today Matlab hangs on startup with no alert nor messages.

Then, I installed 2019b on my machine whith Catalina MacOs system and I have the same issue, while 2018b runs very well.

Is there any known issue on Matlab 2019b and MacOs

Best,

[Andy Yang]

Out of curiosity, do you have the program "Magnet" running? If you do, if you quit magnet do you see the same issue? I want to update but I need to make sure everything is stable before I do.

[Taoufik Gabsi]

Hi Andy,

I don't know what is Magnet program, so I don't think it is running on my computer

At least, the commande "ps -ef | grep magnet" and it does not apear in the activity manager.

[Bhavna Rajasekaran]

I have Mojave and did not yet switch to Catelina. However, there was a security update apparaently compatible with Mojave and Catelina.

Now every time Matlab (R2019b) crashes during code runs. These codes were running fine until 2days ago. Anyone faced such an issue? Any work around solutions for this please?

Thank you,

Bhavna

[Janak Thotakura]

Hi All,

If the issue continues to exist, please reachout to MathWorks support team to investigate the issue further.

https://www.mathworks.com/support/contact_us.html

When you are submitting a request consider attaching the crash file if there is one generated. Following link has information on how to locate the crash files.

https://www.mathworks.com/matlabcentral/answers/100816-how-do-i-locate-the-crash-dump-files-generated-by-matlab

-Janak

Answer 1

[Stuart Fogel]

Had the same / similar issue: Matlab R2019b hangs at startup (just after splash screen). Running MacOS Catalina.

I tried deleting some preference / settings files, and this fixed it!

Try deleting these files :

/Users/~/Library/Application Support/MathWorks/MATLAB/R2019b/MATLABDesktop.xml

/Users/~/Library/Application Support/MathWorks/MATLAB/R2019b/matlab.prf

/Users/~/Library/Application Support/MathWorks/MATLAB/R2019b/matlab.mlsettings

Then start Matlab normally.

[Jason Chandler]

This worked for me! Thanks!

MATLAB 2019b on Catalina 10.15.3

[Karolin Guldevall]

Worked for me too! Thank you!

[Martina Miotto]

This worked! Mojave 10.14.6

[Chenyu Guan]

I did not find "MATLABDesktop.xml" this file, I deleted the other 2 but it didn't work

[Chenyu Guan]

I turned off my app "Context" and the "MATLABDesktop.xml" files shows up and everything is all fine now.

[Mirko Maraldi]

It worked for me (Catalina 10.15.5) but with an extra-care.

I noticed that the problem was that when I use Matlab, I use it with the Editor window undocked. Well, rather unbelievably, the issue for me was caused by the fact that the Editor window was of the same size as the main window in the vertical direction.

So, to solve the issue, I deleted the 3 files as suggested by Stuart and set the size of the Editor window to be, in the vertical direction, sightly smaller that the main window. Now I can restart Matlab and it does not hang anymore.

Answer 2

[Selma Lugtmeijer]

Same here

Answer 3

[Kolbjørn Kallesten Brønnick]

Same problem. Catalina.

Answer 4

[Álvaro Sanjuán Florido]

Same problem here.

Answer 5

[Nicholas Hermary]

Same problem on Catalina. Use to run but now won't open.

Answer 6

[Or Segal]

Same here, on Catalina.

Answer 7

[Maximilian Beckenbauer]

Same here!

Answer 8

[Janak Thotakura]

The issue is fixed in R2019b_update2. Please refer the attached bug report.

https://www.mathworks.com/support/bugreports/2067167

[Maximilian Beckenbauer]

No it is not. I have 2019b Update 3 and still the same problem!

[Janak Thotakura]

Please reachout to MathWorks support team so we can help you with this issue.

https://www.mathworks.com/support/contact_us.html

Thanks,

Janak

[Richard Keniuk]

I've been using Matlab RO2019b Update 2 on High Sierra and now Mojave. It appears that something is broken in Matlab beyond RO2019b Update 2 since trackpad actions are now not smooth and any command that interacts with file system will not browse to any network shares. There appears to have been changes in RO2019b Update 3 (and beyond) that have caused issues on Mac.

Answer 9

[Taoufik Gabsi]

The issue seems to be solved after the last macOS cataline update,

Thanks all