1.8 alpha 3 to 1.8 rc1 upgrade issue

I just upgraded 1.8 apha3 to 1.8 rc1 and it failed on the very last step.

Now, it’s not displaying any of the layouts. Any ideas?

Also, since the update, it’s showing this message, but I can’t find this file:


Can you check the error log please? You can follow the report fault wizard to get a log if easier.

The file is /web/install/index.php and most likely wasn’t deleted because the upgrade process didn’t finish cleanly.