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I have installed matlab-mode from the melpa repository. However when I do

M-x: matlab-shell [RET]

It gives me the following error.

objc[4164]: Class JavaLaunchHelper is implemented in both

/Applications/MATLAB_R2016b.app/sys/java/jre/maci64/jre/bin/java and /Applications/MATLAB_R2016b.app/sys/java/jre/maci64/jre/lib/jli/libjli.dylib. One of the two will be used. Which one is undefined

M-shell segmentation fault 11

Can anyone help me with this?.

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  • If Emacs crashes there is a bug somewhere. Can you reproduce the problem starting with emacs -Q (no init file)? If not, recursively bisect your init file to find the cause/culprit. You can use comment-region to comment out (or uncomment, with C-u) selected text. If you can give a reproducible recipe starting from emacs -Q, please file a bug report: M-x report-emacs-bug. – Drew Nov 13 '16 at 19:22
  • Hi emacs doesn't crash, matlab does. I can run matlab in my terminal as usual but not in emacs. Not even using the terminal emulator inside emacs. – minibuffer Nov 13 '16 at 19:29
  • In that case, please edit your question (e.g. title) to make clear that it is not function matlab-shell (which is Emacs) that crashes. Also, what is M-shell? (The question is not yet clear to me, but hopefully it is clear to someone who is familiar with MatLab.) – Drew Nov 13 '16 at 19:59
  • I don't know what M -shell is. It is in the error thrown when it crashes. Apparently other people who use matlab-mode have run into this problem in MATLAB_R2016b. So it might be a bug in MATLAB. But then again I can run MATLAB from my terminal just fine. – minibuffer Nov 13 '16 at 22:07
  • OK, thanks. Hopefully someone else can shed some light on this and provide a useful answer for you. – Drew Nov 13 '16 at 23:08
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Supposedly, this is a bug in MATLAB R2016b. A solution is to downgrade to R2016a!

I installed R2016b to find out that MATLAB crashes upon start up. What is strange however, is that I managed to run R2016b from Emacs once. My first thought was a bad configuration, but it kept crashing despite having cleared the config from ~/Library/Application\ Support/MathWorks/MATLAB/ (which is the new configuration path for R2016b).

It's difficult to point fingers from the stack trace (not knowing the source code), but around a "Run Path Dependent Initialization" is where mine crashes.

I have reported the segmentation fault to MathWorks (with a link to this question).

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  • I reported the same to MATLAB many months ago. They either don't want or don't know how to fix it. The problem remains the same. So much for commercial software. – minibuffer Mar 6 '17 at 22:12
  • I just installed R2017a and the issue seems to be gone. – martinjlowm Mar 14 '17 at 13:20

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