iPhoto not working

Anyone else's iPhoto not working now?

Absolutely everyone's.

Not compatible with Catalina?

Correct. As was clearly announced before the release of Catalina.

SOOO what do we do now

What you could have done at any point in the past 4+ years - since iPhoto was discontinued. It is no longer developed or sold. It was replaced by the more powerful (and free) Photos.app that comes with the OS. You can migrate to that app very simply:

Hold down the option (or alt) key and launch Photos. From the resulting menu select 'Choose Library' and point at your iPhoto Library. It will do the rest.

If you prefer not to use Photos there are several 3rd party apps that you can use. Which to choose depends on the kind of photographer you are and your budget.

Apple is the developer.

An astute observation.

You two are just marvellous. More of that please 😄

I think you would be surprised at the age of a lot of the posters on this board. IIRC, Terrence is not that far behind you.

Bless you for thinking I'm behind...

Oh, so your avatar is a real picture of you?

That's my youngest son :)