Nautilus won't launch (after updates)

[Scoobin]

Help, I can no longer launch Nautilus. I click on the icon and it just flashes like it's trying to load but doesn't load.

If I try launching from the terminal I get this error:

nautilus: error while loading shared libraries:  libnautilus-extension.so.1: cannot open 
shared object file: No such file  or directory

Anyone know anything about this?

I'm not sure which version of Nautilus it is as I can't query with the command. But I'm running 11.10 with latest updates, and I'm guessing the most recent updates killed it.

...or it could have been the Unity 5 PPA I removed since it didn't work properly...

So I guess I'm missing some files or some files or some update has messed things up.

[nutr0cker]

...or it could have been the Unity 5 PPA I removed since it didn't work properly...

Yes, it seems to be the reason, I've got the same problem after downgrading Unity. But I also have no idea how to fix it.

[Scoobin]

I seem to have fixed it.

What worked for me was the this post:
http://askubuntu.com/a/96445

But I found I had to follow it exactly and completely. The first time I tried it I started from after the purge since I had already done that. But you need to start from the top - even doing things again that you've already done. Don't skip anything.

Hope that helps.