rake test failure

gistfile1.txt

Failures:

  1) 2.1 API, no redirect loads and looks as expected
     Got 0 failures and 2 other errors:

     1.1) Failure/Error: visit '/foundry/soda.demo.socrata.com/b6kv-3wgw'

          Cliver::Dependency::NotFound:
            Could not find an executable ["phantomjs"] on your path.
          # ./_tests/test_foundry.rb:21:in `block (2 levels) in <top (required)>'

     1.2) Failure/Error:
            raise Dependency::NotFound.new(
              "Could not find an executable #{@executables} on your path.")

          Cliver::Dependency::NotFound:
            Could not find an executable ["phantomjs"] on your path.