Background
On my local machine, I tried installing the ‘bullet’ gem via my gemfile, and bundle seemed to go without incident, however upon restarting my app passenger began throwing the error Invalid gemspec for uniform_notifier. It seems someone else had this issue and the suggested resolution on StackOverflow said to update RubyGems by running:
The issue
gem update --system
This produced no error messages upon running, however now none of apps will start. They all give the same vague Passenger error:
PhusionPassenger::UnknownError
There was an error in your Gemfile, and Bundler cannot continue. (Bundler::GemfileError)
I removed ‘bullet’ from my gemfile so it’s now back in a state when it was working yesterday, so I don’t think there can be an error in my gemfile. Furthermore, all of my other apps are now broken and their gemfiles haven’t changed at all.
For reference:
ruby -v
ruby 1.9.2p0 (2010-08-18 revision 29036) [x86_64-darwin10.5.0]
rails -v
Rails 3.2.6
rvm --version
rvm 1.1.4 by Wayne E. Seguin
And when I do gem list for the global and local gemsets, it shows bundler 1.1.0 installed.
Edit: I should also mention that running rails s starts up a WEBrick server just fine and I can access my apps at localhost:3000, so it’s only under Passenger that this error crops up.
I was able to fix this by rolling back rubygems-update to the previously installed version by running
At which point all of my apps began working again. I’m still not sure what the problem was, and will gladly switch the accepted answer from my own to someone who can provide more insight into why updating rubygems-update would break Passenger integration.