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Nikto! of Klaatu barada nikto fame.

Rails can't find active_support or other already installed gems?

Recently a development server I use became inoperable with strange messages about missing gems that I knew where installed. It turns out I had accidentally installed them as my local user under my .gem directory and then removed the gems when I realized my mistake. Unfortunately, I didn't delete everything that had been installed under ~/.gem, notably the spec files for the said gems and other cruft.

It seems that Rails (2.3.5) checks the spec files at startup and will not probe the system gems if it encounters a spec file for one in your local directory, even if it fails to load the referenced gem. So make sure you delete ALL the files related to your gem in your local directory if you make the same mistake.