Error when launching Natron

I can’t launch Natron - I have tried versions 2.3.11 up to 2.3.14. This is the error message I get consistently, something to do with Python. How do I fix this, can’t find anything Natron related on the web that refers to this error.

Dyld Error Message:
Symbol not found: __ZNSt12length_errorD1Ev
Referenced from: /Applications/
Expected in: /usr/lib/libc++abi.dylib
in /Applications/

What version of macOS are you running? Does the latest RC work?

Does older versions work?

I don’t use Mac, but I do have an old Macbook running 10.7 Lion (to legally build software for Mac).

I get the same issue, also running the “Universal” build of the latest RC, I don’t know about the OSX 10.9+ build.

Can someone confirm the the available Mac builds works?

Hi, Getting the same issue on OSX 10.8.5, 10.9 and 10.10. Haven’t tried anything older than Natron 2.3.11 yet.

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The last version I’m able to run on OSX 10.7 is 2.2.7. Newer builds has the same issue as above (or other issues related to Qt). That’s as much I can test with the OSX version I have (The graphics card don’t even support OpenGL2, I know it’s crap, I just use it to build stuff).


ok thank you, downloading 2.2.7 to try - if it works I’ll work upwards from that as I’m not on OSX 10.7.

I just double checked my system with the installation requirements for Natron. Everything according to that list checks out, I’m on OpenGL 2.1, all the extensions are installed etc. There must be something else that’s required.

Yes 2.2.7 seems to be the highest that will work. I’m learning Natron so it will get me started. Thanks :slight_smile:

@garrettlynch can you please post a github issue?

Did you try with the latest 2.3.15RC binaries?
Please try the Universal (10.6+) as well as the 64bit (10.9+) binaries.

Reference to similar issue:

A fix could be to ship libc++ with the 10.6 binaries.

The 10.9 binaries should work ok on 10.9+