Library not loaded: @rpath/lib​cudart.10.​2.dylib

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I've recently been getting the following error when trying to run "bwlabel.m". Trying to run code that had been working as recently as a month ago. Any advice would be appreciated.
Running Matlab 2020b on Mac OS 10.15.7.
%%
Unable to load bundle binary
/Applications/MATLAB_R2020b.app/bin/maci64/builtins/images_builtins/mwlibmwimagescore_builtinimpl.dylib. Error:
dlopen(/Applications/MATLAB_R2020b.app/bin/maci64/builtins/images_builtins/mwlibmwimagescore_builtinimpl.dylib, 10):
Library not loaded: @rpath/libcudart.10.2.dylib
Referenced from: /Applications/MATLAB_R2020b.app/bin/maci64/libopencv_core.4.2.0.dylib
Reason: no suitable image found. Did find:
/Applications/MATLAB_R2020b.app/bin/maci64/libcudart.10.2.dylib: code signature invalid for
'/Applications/MATLAB_R2020b.app/bin/maci64/libcudart.10.2.dylib'
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Accepted Answer

MathWorks Support Team
MathWorks Support Team on 22 Jun 2022
This error is documented here:
Please refer to the Bug Report for details concerning this issue and its resolution. You may also "Follow" the Bug Report to be notified of future updates regarding this issue.
  3 Comments
Yuval Vardi
Yuval Vardi on 22 Jun 2022
The instructions in the Bug Report only ask to update to Matlab 2021a. What should we do if we cannot update the matlab version?

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More Answers (5)

guitalele
guitalele on 13 Jun 2022
Edited: guitalele on 22 Jun 2022
For other mac users who don't want to update MATLAB and don't have access to /usr/lib: I found that copying the library to /usr/local/lib did the trick, provided I also added an 'ad-hoc' code signature, eg:
sudo cp /Applications/MATLAB_R2020b.app/bin/maci64/libcudart.10.2.dylib /usr/local/lib
sudo codesign --deep -fs - /usr/local/lib/libcudart.10.2.dylib
Tested on:
  • R2020b on Big Sur (11.6.6)
  • R2019b on Mojave (10.14.6) - note libcudart version is different: libcudart.10.1.dylib
Note that this solution is just based on previous answers (https://uk.mathworks.com/matlabcentral/answers/1735020-library-not-loaded-rpath-libcudart-10-2-dylib#answer_982300 + https://uk.mathworks.com/matlabcentral/answers/403742-invalid-mex-file-and-missing-libmwblas-dylib-error#comment_1506540 ) + google + trial and error. I have no expertise in macOS code signing and would welcome thoughts from Mathworks or others on whether this is a sensible thing to do.
---
Update 22nd June: As pointed out by @Tyler Cumby in the discussion below, there is no need to move the file to /usr/local/lib - you can just run the codesign command directly on the relevant file
  14 Comments
Fatemeh Taheri
Fatemeh Taheri on 12 Jul 2022
It's work for me on macOS Big Sur 11.6. Thank you!

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Bhavana Ravirala
Bhavana Ravirala on 9 Jun 2022
Hi Nitin,
Go through the following link which helps in eliminating the error.
Hope this helps.
  1 Comment
Pierre Lanari
Pierre Lanari on 9 Jun 2022
Thanks for the suggestion.
As I don't have access to /usr/lib/ on Catalina, I have tried moving the library to my working directory (and various other locations in the MATLAB path).
I can find the library with the command:
which libcudart.10.2.dylib
However, this does not eliminate the error for me.

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Naveh Levanon
Naveh Levanon on 9 Jun 2022
I had this problem now too in R2020b.
I installed R2021a fresh and the problem is gone. Others say re-installing R2021b works too. Possibly any re-install would fix this.
  4 Comments
Joss Knight
Joss Knight on 13 Jun 2022
Hi Pierre. MATLAB does not ship the offending library (libcudart) in R2021a so I'd be interested for you to elaborate more to help us work out what's going wrong for you. Perhaps you are running a MEX function?

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Abbas Ezzat
Abbas Ezzat on 11 Jun 2022
How can i run polymeric composite formulations to optimize selction criteria
  1 Comment
Walter Roberson
Walter Roberson on 11 Jun 2022
I do not understand the relationship to the libcudart question?

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Joss Knight
Joss Knight on 4 Jul 2022
This problem should now be fixed at Apple, please reboot and report here if you are still experiencing issues.

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