Cats + Dogs Expansion Pack Won’t Load in Game No Matter What I Do!

@evicopperfield  Please run a search for the data from Cats & Dogs: I'd like to see whether it's installed in the wrong location.  Open a File Explorer window, click This PC in the left panel, and enter EP04 in the search field in the upper-right corner.  When the scan finishes, make sure the full file paths show under each item; if not, expand the window sideways as necessary.  Then use Windows key-shift-S to capture that portion of the screen, and attach the screenshot to a reply here.

Okay I messaged you the screenshot

@evicopperfield  Thanks for the screenshot, and it confirms that your issue is that Cats & Dogs has been installed into the folder for the Sims 4 CAS Demo.  Please see the workaround here:

https://answers.ea.com/t5/Technical-Issues-PC/EA-App-claims-packs-are-installed-yet-they-are-not/td-p/12126024

If you prefer, you can instead uninstall the CAS Demo, clear the EA App's cache, and try again to install C&D.  The downside of this is that you won't be able to reinstall the demo, but perhaps that doesn't matter to you.

When i move the pack file out of the cas demo folder is there a specific place to put it?

@evicopperfield  You could trash the EP04 folder entirely and let the EA App download C&D again.  Or you could move the folder here:

C:\Program Files (x86)\Origin Games\The Sims 4

If moving the folder doesn't help, delete it and rename the CAS Demo folder (you might need to restart your computer), then clear the App's cache:

https://help.ea.com/en-us/help/faq/clear-cache-to-fix-problems-with-your-games/

And download the pack again.

Where were you able to see the misplaced pack? I don’t see anything that says “cats + dogs”. Does it have a certain file name?

oh wait. is it you want me to move the EP04 CAS folder into the EP04 Sims 4 one? (sorry i’m bad with computer stuff)

@evicopperfield  Actually, I want you to rename the "The Sims 4 Create a Sim Demo" folder, the one in C:\Program Files (x86)\Origin Games, to something else, then clear the EA App's cache, then restart your computer, then download Cats & Dogs fresh.  This is more reliable than moving the EP04 folder, and it's probably faster too if you're not familiar with the existing folder setup.  You can download C&D by clicking Sims 4 in your EA App game library and selecting Manage > Manage Add-ons.

Oh no it still hasn’t worked. I’m not sure why. In the game it says it’s downloaded but there’s still nothing there. 

@evicopperfield  Inside the Sims 4 CAS Demo folder is an Installer folder, or at least there should be one.  Please move that folder to the trash, clear the EA App's cache (again), and see whether you can download C&D.  If not, please run a new search for EP04 , just like the last one, and post it here or send it to me.