Bundler throws uninitialized constant Gem::SilentUI (NameError) error after upgrading to Rubygems 1.5.0

Question

I ran gem update --system to update to Rubygems 1.5.0 and after every time I run any bundle commands I get:

rvm/gems/ruby-1.8.7-p249/gems

Answer 1

Note that if you're using rvm, you may not be able to upgrade bundler yourself. You may need to upgrade rvm in order to update bundler, since rvm integrates bundler pretty tightly. I got this error, tried to upgrade bundler, couldn't, and upgrading rvm fixed my problem.