The Sims 3 Error!!

I Always Haveing Error while Installing The Sims 3 Exp Packs....
I Am Tring To Install Late Night But Something Is Showing Up.

I Am Opening The Setup
Loads For 1-3 Sec.
Ask To Update The Sims 3
And
Something will open"Error with The Sims3 setup. Setup Is Unable To Continue"
When I Click Ok It Will Quit Even With World Adventures.....

Hello,

First of all try the following:

Please open the .rar file you downloaded using only WinRar, which can be downloaded from www.games4theworld.org . (If you use any other software than WinRar, like WinZip or 7-zip, the files will get messed up!)
When you've opened the file using WinRar, select áll the files in it and drag & drop them to a folder on your Desktop. When the extraction is done, close the .rar file and open the folder on your Desktop.
Now, start by reading the included "# Installation Guide.txt" and you should be able to get the game to work yourself. Good luck!

When you're able to install the expansion(s), you also nééd Late Night and Outdoor Living Stuff in order to make it work.
After you're done with áll the expansions needed and the ones you like, just apply this fix and it should all work fine: https://games4theworld.forumotion.com/t752-the-sims-3-latest-fix-should-fix-most-of-your-problems