CoreText Font Error on MacOS Big Sur

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Jack Shannon
Jack Shannon 2021-2-1
编辑： Walter Roberson 2024-11-14
Since upgrading to R2020b on Big Sur, whenever I start MATLAB from the command line (matlab -nodesktop -nosplash), I get the following error messages:
< M A T L A B (R) >
Copyright 1984-2020 The MathWorks, Inc.
R2020b Update 1 (9.9.0.1495850) 64-bit (maci64)
September 30, 2020
To get started, type doc.
For product information, visit www.mathworks.com.
>> 2021-02-01 06:44:12.194 MATLAB_maci64[42710:446809] CoreText note: Client requested name ".SFNS-Regular", it will get Times-Roman rather than the intended font. All system UI font access should be through proper APIs such as CTFontCreateUIFontForLanguage() or +[NSFont systemFontOfSize:].
2021-02-01 06:44:12.194 MATLAB_maci64[42710:446809] CoreText note: Set a breakpoint on CTFontLogSystemFontNameRequest to debug.
2021-02-01 06:44:12.200 MATLAB_maci64[42710:446809] CoreText note: Client requested name ".SFNS-Bold", it will get Times-Roman rather than the intended font. All system UI font access should be through proper APIs such as CTFontCreateUIFontForLanguage() or +[NSFont systemFontOfSize:].
2021-02-01 06:44:12.425 MATLAB_maci64[42710:446809] CoreText note: Client requested name ".SFNS-Regular", it will get Times-Roman rather than the intended font. All system UI font access should be through proper APIs such as CTFontCreateUIFontForLanguage() or +[NSFont systemFontOfSize:].
2021-02-01 06:44:12.426 MATLAB_maci64[42710:446809] CoreText note: Client requested name ".SFNS-Bold", it will get Times-Roman rather than the intended font. All system UI font access should be through proper APIs such as CTFontCreateUIFontForLanguage() or +[NSFont systemFontOfSize:].
I get the same error messages in the terminal when I use just type matlab as well. When I start MATLAB normally by clicking the application icon, these error messages do not appear in the command window. I did not experience these problems whe using R2020a on Catalina or R2020a on Big Sur.
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Paras Patel
Paras Patel 2021-10-5
Hi - I just ran into this issue today as well and I searched google for a fix. Did not find any but I'm able to suppress it via (see below) which solves my immediate annoyance.
/Applications/MATLAB_R2021a.app/bin/matlab -nosplash -nodesktop 2> >(grep -v CoreText)
(i.e. I added the 2> >(grep -v CoreText) to redirect the stderr to grep and filtered out CoreText).
I would appreciate a more robust solution from MW though.
Peter G
Peter G 2022-2-10
I get the same on a macbook pro running 2021b under Catalina
MATLAB CoreText note: Client requested name ".SFNS-Bold", it will get Times-Roman rather than the intended font. All system UI font access should be through proper APIs such as CTFontCreateUIFontForLanguage() or +[NSFont systemFontOfSize:].

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回答（2 个）

M. A. Hopcroft
M. A. Hopcroft 2022-5-9
I had the same issue until just now and it looks like I got lucky with a solution. I had a java-related Matlab crash, and the Crash Reporter suggested this solution, which is to replace the Java JRE that is installed with Matlab with a different version:
MATLAB crashes on Mac when certain screen events occur (1382373)
I followed this procedure (replaced the MW JRE with the Adoptium JRE 8) for both R2020b and R2021b, and in both cases the font warning no longer appears. I have only tried this on macOS Monterey 12.3.1.
PS - Note that Java version 8 is not the default download at the Adoptium site, you have to select it specifically.
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jaydeequeue
jaydeequeue 2022-7-9
This worked for me under macOS Monterey 12.4 and MATLAB 2021a after installing the macOS JRE package for release jdk8u332-b09 found at https://adoptium.net/temurin/archive?version=8, removing /Applications/MATLAB_R2021a.app/sys/java/jre/maci64/jre, then making a symbolic link from /Applications/MATLAB_R2021a.app/sys/java/jre/maci64/jre to /Library/Java/JavaVirtualMachines/temurin-8.jre/Contents/Home
David Donoso
David Donoso 2024-11-14
编辑：David Donoso 2024-11-14
This also worked for me but under macOS Sonoma 14.7.1 and MATLAB2023b after:
1) Installing OpenJDK8U-jre_x64_mac_hotspot_8u432b06.pkg found at https://adoptium.net/es/temurin/releases/?version=8
2) Rename "/Applications/MATLAB_R2023b.app/sys/java/jre/maci64/jre" to "/Applications/MATLAB_R2023b.app/sys/java/jre/maci64/jre_ORIGINAL" (avoid to lose the original installation)
3) Change directoty to "/Applications/MATLAB_R2023b.app/sys/java/jre/maci64" and make a symbolic link from "/Library/Java/JavaVirtualMachines/temurin-8.jre/Contents/Home" to a new "jre"

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Joshua O'Reilly
Joshua O'Reilly 2021-10-9
编辑：Walter Roberson 2024-11-14
I found adding the
-nodisplay
flag to your command fixed it for me (or maybe just surpressed it). So:
matlab -nodesktop -nosplash -nodisplay
I'm running MATLAB R2021a on a Macbook Air M1 with macOS 11.6.
Edit: based on this article, you may be able to get away with just -nodisplay:
https://www.mathworks.com/matlabcentral/answers/16407-can-i-use-matlab-from-the-terminal-command-line-in-os-x
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Jack Shannon
Jack Shannon 2021-10-9
Thanks for the suggestion! I tried this and it did indeed suppress the error message, but this works only if I need no display features at all; if I wanted to create figures from the command line, I would not be able to. I did try starting matlab with the -nodisplay option and then ran the plot command, which produced the same error messages but no plot! There seems to be a problem with the way that MATLAB requests fonts from the OS whenever it creates display windows, and using -nodisplay just stops those requests but does not fix the underlying error.
Joshua O'Reilly
Joshua O'Reilly 2021-10-9
Oh, well that's no good. Sorry for the bad recommendation, I got this "working" today and hadn't tried creating figures yet.

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