RVM works, Ruby gems installed, but not accessible with require - ruby

Question

Here’s my problem:
➜ ~ rvm current
ruby-2.2.1
➜ ~ rvm list
rvm rubies
ruby-2.0.0-p643 [ x86_64 ]
ruby-2.1.1 [ x86_64 ]
=* ruby-2.2.1 [ x86_64 ]
# => - current
# =* - current && default
# * - default
➜ ~ ruby -v
ruby 2.2.1p85 (2015-02-26 revision 49769) [x86_64-darwin14]
➜ ~ gem list
*** LOCAL GEMS ***
bigdecimal (1.2.6)
bundler (1.10.6)
coderay (1.1.0)
domain_name (0.5.24)
http-cookie (1.0.2)
io-console (0.4.3)
json (1.8.1)
method_source (0.8.2)
mime-types (2.6.1)
netrc (0.10.3)
plaid-ruby (0.1.2)
plist (3.1.0)
pry (0.10.1)
psych (2.0.8)
rake (10.4.2)
rdoc (4.2.0)
rest-client (1.8.0)
slop (3.6.0)
unf (0.1.4)
unf_ext (0.0.7.1)
➜ ~ irb
irb(main):001:0> require 'plaid-ruby'
LoadError: cannot load such file -- plaid-ruby
from /Users/richardburton/.rvm/rubies/ruby-2.2.1/lib/ruby/site_ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
from /Users/richardburton/.rvm/rubies/ruby-2.2.1/lib/ruby/site_ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
from (irb):1
from /Users/richardburton/.rvm/rubies/ruby-2.2.1/bin/irb:11:in `<main>'
irb(main):002:0>

Answer 1

You need to require plaid, not plaid-ruby. The file you require doesn’t necessarily have the same name as the gem, although it’s often the case that it does.
In fact from the Rubygems page for plaid-ruby and the Github page it links to it looks like it is an old version of the Plaid client, and you should be using the plaid gem.