I'm trying to connect to a Sybase DB with SqlAnywhere from my rails app (the sybase is a secondary db), but when I declare my connection, I receive the follow exception

NameError (uninitialized constant Arel::Visitors::VISITORS):

I'm connecting like this

ActiveRecord::Base.establish_connection(
    adapter:  "sqlanywhere",
    username: "xxxx",
    password: "xxx",
    database: "xxxx",
    host: ip_address
  )