Apartment Life saying Seasons Isn't Installed?

[vollyballgal]

I waited all this time to install Apartment Life and just did it last night (plus the patch).  I have all of the other major expansion packs, never had a problem with it.  And now when I start The Sims, at the neighborhood selection screen, it says that Seasons has been uninstalled and that if I continue all of my seasons data will be erased from my neighborhoods.  Blah.  So what the heck?  Do I try to install seasons again (even though I know it never was uninstalled).  Help??

[Engram]

Make sure you do a backup of your hoods and downloads and whatever else you want to keep first.

Mine did the same thing and I just had to re-install whatever EP it wasn't happy with and in the end all of them ended up working together just fine. But it was frustrating seeing  that come come up.