Error

[Pertmo]

I'm using Lightroom CC. An internal error has occurred: ?:0: attempt to index a nil value

Does anyone know what this means?

[JohanElzenga]

Please tell us the version of Lightroom you are using. "Lightroom CC" is an old name, that hasn't been in use for many years. There are two versions: Lightroom and Lightroom Classic. Also tell us exactly when you get the error. What are you trying to do when it comes up?

[Pertmo]

I have Lightroom Classic. It comes up when clicking on auto-edit or just
sliding to make any change.

[JohanElzenga]

OK, I moved the thread to the correct forum. That gives you more chance that somebody knows the answer.

[dj_paige]

Search the forum for the text "?:0: attempt to index a nil value", this has been discussed many times.