Error when running observer

I installed kerl and necessary libraries in order to load the observer where I could see all the processes. I do not know what happened recently, but I the observer is no longer starting.

:observer.start()

yields the following error.

beam.smp[15934:49251222] _NXSetHidesOnDeactivate: error retrieving current process

Has anyone else come across this error?

Thanks.

I’d first check if your Erlang is installed with support for wxwidgets.

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Hmm, it had been working before.

This morning, my computer just decided to restart after some stupid Mac OS crash, and observer works fine now. My guess is something that the observer UI was dependent on had crashed or something.

Thanks!