Problems with Launcher (Steam User). Solved

Sleepstar

Since Saturday I have been having problems with reinstalling the Store Content. At first I thought it could be the files I had was misplaced. Yesterday I deleted the Store Content in my Downloads Folder and reinstalled, thinking it could be that the files could have became outdated (The oldest files on my laptop dates from August 2017). Today, I reinstalled the remaining items I had left, installed the items I downloaded yesterday and deleted the Custom Content I don't use before playing. Unfortunately, the Store Content still hasn't appeared. So I Saved and Quit before asking my brother for advice. He suggested that I uninstall The Sims 3 from Steam beore reinstalling (I use Steam primarily for The Sims 3, but I use the CD Keys on Origin). But I kept getting an error message every time I started up the Launcher saying "There was an error during Startup. Please refer to the Log". My sister suggested an uninstall, reinstall and a restart, and did that. Here's what I have:

Expansion Packs
1: The Sims 3
2: The Sims 3 World Adventures
3: The Sims 3 Ambitions
4: The Sims 3 Late Night
5: The Sims 3 Generations (The list on the My Page doesn't show, but I have Generations installed)
6: The Sims 3 Pets
7: The Sims 3 Showtime
8: The Sims 3 Supernatural (Like Generations, this EP doesn't show up on the My Page but it is installed)
9: The Sims 3 Seasons (Again, this EP doesn't show up on the My Page but it is installed)
10: The Sims 3 University Life
11: The Sims 3 Into The Future

Stuff Packs
1: The Sims 3 Design and High-Tech Stuff
2: The Sims 3 Fast Lane Stuff
3: The Sims 3 Outdoor Living Stuff
4: The Sims 3 Master Suite Stuff
5: The Sims 3 70's 80's and 90's Stuff
6: The Sims 3 Movie Stuff

Mods
1: NRaas Overwatch
2: NRaas Story Progression
3: NRaas Master Controller
4: NRaas Tagger
5: NRaas Traveller
6: NRaas Porter
7: NRaas Go Here
8: NRaas Vector
9: NRaas Careers
10: NRaas Mover
11: NRaas Error Trap
12: NRaas Relativity
13: NRaas Relationships
14: NRaas Hybrid
15: Supernatural Babies
16: Longer Seasons
I also have "The Mod That Can't Be Named"

Custom Content
Skysims 171 Retexture
Skysims 178 Retexture

Store Sets
1: Bohemian Garden
2: Tip Top Toddler Collection
3: Kids! 2010
4: Registration rewards for Ambitions, World Adventures, Pets, University Life and Into The Future
5: The Free Sets; Halloween, Winter, New Years, Valentine's, St. Patrick's Day, Autumn, Lunar New Year and the Sports sets

I also have a number of items from different Store Sets

Store Worlds
1: Riverview (Received when I registered the Base Game to Origin)
2: Hidden Springs

I haven't had this problem before now. But I am currently trying to see if the Launcher being updated on Steam helps resolve the problem. I will update with the result

Sleepstar

I have tried "Run as Admininstator" when I played, updated the Launcher on Steam, looked at the registry and still nothing. I also deleted the Custom Content I barely used and I have deleted the cache files and game mods. I'm going to try and reinstall through Steam and if the problem is still there I don't really know what to do. My laptop is mid-range

Sleepstar

Tried playing through Steam, and the problem is still there. I am reinstalling The Sims 3 and seeing if it's a problem with Mods

Calico45

I seriously suggest contacting Origin support. From what I understand, there are all sorts of problems with the Sims 3 store now. When I was porting over my old physical copies to Origin I had to figure this out the hard way.

Sleepstar

Thank you for the suggestion @Calico45

texxx78

I have installed my store content yesterday using the launcher with no issues, but i'm an origin user...

Sleepstar

@texxx78 I have Origin too but I don't use it though. I never had this problem until Friday.

Going to try with the Launcher once the game reinstalls. If that works I will play for five minutes without Mods and then go out of the game and then reinstall the following Mods: NRaas Overwatch, Story Progression, Master Controller, Porter and Error Trap.

Sleepstar

So anyway my sister went to Factory Settings and it turned out the problem was I didn't move the Mods Folder to desktop plus I didn't restart yesterday. Hopefully with the restart and reinstall the game should work again

Sleepstar

After a restart and a reinstall, still the same problem.

Sleepstar

Just waiting for The Sims 3 to reinstall. I'll see if the Launcher works in the morning

Sleepstar

Decided to run a quick scan, and if The Sims 3 Launcher still doesn't work I will uninstall both The Sims 3 and Steam, restart and reinstall Steam then The Sims 3

Sleepstar

Problem is resolved.

Currently have installed:
Expansion Packs
1:The Sims 3
2: The Sims 3 World Adventures
3: The Sims 3 Ambitions
4: The Sims 3 Late Night
5: The Sims 3 Generations
6: The Sims 3 Pets
7: The Sims 3 Showtime
8: The Sims 3 University Life
9: The Sims 3 Into The Future

Stuff Packs
1: The Sims 3 Design and High Tech
2: The Sims 3 Fast Lane
3: The Sims 3 Outdoor Living
4: The Sims 3 Master Suite
5: The Sims 3 70's 80's and 90's
6: The Sims 3 Movie Stuff

Store Content
Bohemian Garden
Registration Rewards for registering Generations, Ambitions, World Adventures, Late Night, University Life and Into The Future
Have Riverview installed

Mods
None installed at the moment

Custom Content
Not going to use any CC

Raven_2012

I was having issues, this is how I got it to work, and it is very simple:
1. Close Steam and start it up.
2. Right click The Sims 3 in Steam Library list of games, or the picture and click play.
3. You will get option Play The Sims(TM) 3, click play.
4. The Launcher should pop up now and all items should be there now.

I do not know why this does this and why it works but it does. I can download all my items from Exchange and install them, then close out launcher and run The Sims 3 from my shortcut on desktop and when in game no items show up. Launcher won't show them either, but they will be in my Download folder.

It took me a while to figure it out, but by simply turning off Steam and then turning it on again and following those steps, it fixes issues. After I do those steps, I can run my shortcut without issues again or missing items in game.

Do not ask me how or why it works, it just works. This game sometimes is like lining up the planets and moons, it is picky how it wants a perfect alignment to work right, lol.

Also something to note, the error "might" occur again if downloading and install something from Exchange later down the road. It is wise to run those steps every so often.

Let me know if this works for you. Worked for me.