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

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.

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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'

[Image Analyst]

I'd call tech support on that one. If you can't or won't, then I'd try to reinstall MATLAB. Or you can try

restoredefaultpath

sometimes that fixes weird problems.

[Walter Roberson]

https://stackoverflow.com/questions/41865537/how-does-apples-codesign-utility-decide-which-sha-algorithms-to-sign-a-shared maybe??

[Luke Mason]

I'm also having this problem, also 10.15.7. I'll edit this post if I find a solution.

[Chenyi Fei]

I got the same problem. I'm running Matlab 2020a on Mac OS 10.15.6

[Cata_Ray]

Same problem in Mojave with 2020a. 2018 working correctly.

[Daniel Dahan]

same problem in Monterey 12.4 and Matlab 2019b

[Michael Gardner]

Same problem Catalina 10.15.6, MATLAB R2020a

[Pierre Lanari]

Same problem with Catalina 10.15.7 and MATLAB R2020b or R2020a. I contacted the tech support and they don't have a solution yet.

[Clio Gonzalez Zacarias]

Hi evereryone, I am having the same issue and I had spent around 4 days already tryin to find a way around this. From a collegue I got that maybe the reason is the most recent Apple security updates are listed here

https://support.apple.com/en-us/HT201222

These updates are probably what did it. Gatekeeper is what is making the decision that the library is not safe.

The affected operating systems are Catalina, BigSur. Monterrey as of May 16 2022.

I tried to use some of the old suggestions from:

https://www.mathworks.com/matlabcentral/answers/515765-library-not-loaded-rpath-libmwhgbuiltins-dylib

and declaring the DYLD_LIBRARY_PATH as suggested here:

https://www.mathworks.com/matlabcentral/answers/473971-how-do-i-configure-the-ld_library_path-on-linux-and-dyld_library_path-on-mac-os-x-to-point-to-mcr

Also, I tried some of the don'ts for Mac

https://www.naut.ca/blog/2020/11/13/forbidden-commands-to-liberate-macos/

So far no success.

If anyone finds a way around this I am really interested on learning how to Fix it.

Thanks everyone.

[Graham Fraser]

I was able to work around this problem on Mojave (10.14.4) by copying:

/Applications/MATLAB_R2020a.app/bin/maci64/libcudart.10.1.dylib

to:

/usr/lib

Delete and reinstall MATLAB, Reboot, and bwlabel should work again.

This workaround doesn't seem to work on Catalina and above because root cannot modify /usr/lib. Disabling SIP protection may get around this but so far I haven't been able to get my solution to work even with SIP disabled.

Hope this helps get us closer to a permanent solution.

[雨鑫 史]

I have the same problemi

Answer 1

[MathWorks Support Team]

This error is documented here:

https://www.mathworks.com/support/bugreports/2759107

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.

[Tyler Cumby]

Since older releases will not be fixed, can you augment the error report to link to this MATLAB Answers post? That way, those that cannot upgrade are more likely to find the fix developed in this post.

[MathWorks Support Team]

The workarounds described below are not validated by MathWorks and may result in unintended consequences with our products. As such, these are not recommended. If you are not able to follow the instructions in the Bug Report, please contact MathWorks Technical Support and share your workflow.

[Yuval Vardi]

The instructions in the Bug Report only ask to update to Matlab 2021a. What should we do if we cannot update the matlab version?

Answer 2

[guitalele]

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

[guitalele]

@Graham Fraser @Pierre Lanari - tagging you in case it helps on Catalina

[Daniel Dahan]

It is working for me. Thanks!

[Tyler Cumby]

This also an issue in the 2020b MATLAB Runtime as well. If you check the code-signature via a bash shell

codesign --verbose --verify /Applications/MATLAB/MATLAB_Runtime/v99/bin/maci64/libcudart.10.2.dylib

returns

/Applications/MATLAB/MATLAB_Runtime/v99/bin/maci64/libcudart.10.2.dylib: CSSMERR_TP_CERT_REVOKED
In architecture: x86_64

So the code-signature for the file is not valid, which is prohibited by the Gatekeeper on recent macOS versions (I'm on Mojave and it prohibits dynamic loading of this library).

It is sufficient to code-sign the file 'in place', i.e. you don't need to move the file to /usr/local/lib. If you leave it in place, the dynamic loading will follow the @rpath path expansion, as intended by Mathworks.

[guitalele]

Thanks @Tyler Cumby, that clarifies things. I googled CSSMERR_TP_CERT_REVOKED and found some useful backround eg: https://eclecticlight.co/2020/10/28/code-signatures-1-how-they-work-and-stop-working/. In particular:

"At least on Macs running Mojave and later, notifications of certificate revocations are obtained by the background process com.apple.security.syspolicy.check.revocation which is normally set to run every three days. It also appears able to pick up changes more frequently, but isn’t something the user can control."

Initially I assumed a macOS update had tightened security (hence the sudden appearence of the issue), but looking at the update history on multiple affected machines I couldn't find a common recent secuirty update that could explain this.

It sounds like maybe it's more likely that the certicficate has been revoked and the issue appeared when apple pushed out the latest revocations.

[Thomas Vande Casteele]

Tested with Matlab R2020b on Mojave 10.14.16 and did the trick !

Thank you for this one.

[Tyler Cumby]

@guitalele Well done. I think you're probably right. Debugging issues in macOS are always more complicated because of how (intentionally?) opaque Gatekeeper is when you violate one of its requirements (and somehow I still forget this). Initiially when I was looking into this I was checking dyld debug output to see if there was an errant /imcompatible library getting loaded and was thrown off by rpath expansion failures. otool -L was not reporting any missing symbols and then wondered about code-signing issues (clearly the wrong order for debugging, in retrospect).

[Tyler Cumby]

@guitalele On a whim, I tried to install the 10.2 Cuda RT on my Mojave macbook, but the code-signing cert for the installer has been revoked as well. So, I guess NVidia's cert was revoked in the recent past?

[guitalele]

Good spot @Tyler Cumby - sounds like you're right. Apparently NVIDEA got hacked recently, eg: https://www.tonymacx86.com/threads/nvidia-driver-certificate-revoked.320596/post-2324115

[Tyler Cumby]

@guitalele I've reported this to Mathworks Support.

[José Alejandro Rojas López]

It worked on Mac Mojave 10.14.6 and Matlab R2019b

Thanks

[Runnan Cao]

This solution works for macOS Catalina 10.15.7!!!

Thank you so much for sharing!

[Pierre Lanari]

This solution works for me on macOS Catalina as well.

Thank you so much!

[Jessica Zhao]

Works for me on macOS Monterey 12.4 for MATLAB R2020a too! Thank you!

[Fatemeh Taheri]

It's work for me on macOS Big Sur 11.6. Thank you!

Answer 3

[Bhavana Ravirala]

Hi Nitin,

Go through the following link which helps in eliminating the error.

https://www.mathworks.com/matlabcentral/answers/515765-library-not-loaded-rpath-libmwhgbuiltins-dylib

Hope this helps.

[Pierre Lanari]

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.

Answer 4

[Naveh Levanon]

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.

[Daniel Dahan]

I have this problem in 2019b, and re-installing it did not solve the problem for me. However, 2022a works for me.

Based on the comments here I think the problem is up to 2020 versions.

[Vanessa Stenvers]

I had the same problem (MacOs Catalina 10.15.7, R2020b) and installing R2021a worked to fix it, thank you for the tip!

[Pierre Lanari]

A fresh installation of R2021a did not solve the problem for me.

[Joss Knight]

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?

Answer 5

[Abbas Ezzat]

How can i run polymeric composite formulations to optimize selction criteria

[Walter Roberson]

I do not understand the relationship to the libcudart question?

Answer 6

[Joss Knight]

This problem should now be fixed at Apple, please reboot and report here if you are still experiencing issues.