I followed the instructions as verbatim on https://github.com/google/EarlGrey/blob/master/docs/install-and-run.md#cocoapods-installation and I when I run pod install, I get:
LoadError - cannot load such file -- earlgrey
/Library/Ruby/Site/2.0.0/rubygems/core_ext/kernel_require.rb:121:in `require'
/Library/Ruby/Site/2.0.0/rubygems/core_ext/kernel_require.rb:121:in `require'
What am I missing?