Does that look familiar to you?
Rails does not work with Ruby version 1.8.3.
Please upgrade to version 1.8.4 or downgrade to 1.8.2.
Well, it happened to me again when I tried to put my latest project onto my server box. This time I decided to attack the problem. At Dirk Elmendorf’s “Economy Size Geek” blog I found a desctiption on how to use the ruby 1.8.4 backport: Breezy + Rails == No Go.
It turns out that, besides the 90 MiB download, it works like a charm.