coretelephony trace file error a file operation for coretelephony tracing has failed, you may be out of disk space. details 'error opening file /tmp/ct.shutdown, err = operation not permitted

Stubbornly persisting problem! Where's Apple with a solid instruction?!

For my client an upgrade to Sierra solved the case .. he is happily doing his InDesign and PS production now.

In the end my tackling would be upgrading or reinstalling the OS (not necessary a clean one). Good luck everyone, thnx for your contributions.

Jos

Had same issue after upgrade, OSx 10.11.6 on Mid 2015 MBP. Followed sbkramerjr fix and it worked.

Recap of fix

- Boot to safemode

- Open terminal, type: csrutil disable

- Reboot normal

- Reboot safemode again

- Open terminal, type: csrutil enable

- Reboot normal

Done, no more error!

We tried the terminal fix on 13 laptops (we are a school) running el capitan and although core telephony error went away se still couldn't update any 3rd party software. Upgraded to Sierra on the laptops and everything started working again. Sierra seems to be the complete fix at this time.

I can also not load adopt flash player with this mistake.

I also was not dolle this two problems

Werner

Well done sbkramerjr! I can't try out your solution. ;-(

But I trust you found the cause of this annoying error and came up with right solution.

thnx, regards, Jos

Hi, This did not work for me. Any ideas ? Thanks SoloMeter

@duca adv

not sure why it didnt work one day and then it worked ? Please explain.. Thanks

It worked, Thanks!

Thanks, sbkramerjr. This helped me, too.

I tried several other things with an Apple representative on-line. They didn't work. Your solution got InDesign working again. Thank you, thank you, thank you!

Lifesaver! Thankyou sbkramerjr

Thanks a lot sbkramerjyour solution worked well for me 🙂

Thank you so much my friend.

It worked like a charm.

And now Parralles is working for me as well. I can start working on sage again!

Thanks a million.

Simple, easy to follow and totally worked. Thank you!!!!

OS X El Capitan version 10.11.6

This solution worked beautifully. Thanks for posting it!