Re: [Rails] Can't get even a simple Rails app to run? blocked by "“ERROR TypeError: can't dup NilClass”

Note that Ruby 1.8.7 p248 and p249 have marshaling bugs that crash Rails 3.0. Ruby Enterprise Edition have these fixed since release 1.8.7-2010.02 though. On the 1.9 front, Ruby 1.9.1 is not usable because it outright segfaults on Rails 3.0, so if you want to use Rails 3 with 1.9.x jump on 1.9.2 fo

[Rails] Can't get even a simple Rails app to run? blocked by "“ERROR TypeError: can't dup NilClass”

"ERROR TypeError: can't dup NilClass" in a Rails 3 app? Any ideas - I'm just hitting the home page and get this...it was working just before... Gregs-MacBook-Pro:test3 greg$ rails console Loading development environment (Rails 3.2.1) >> exit Gregs-MacBook-Pro:test3 greg$ rails server => Booting W