ActionView :: Template :: Error（在heroku上没有将Fixnum隐式转换为String
我正在使用Mongodb.App正在使用ROR应用程序在localhost上正常工作，但是当我在heroku中部署它时，我收到错误。 我的一个视图文件命令是这样的：
@h=Portfolio.last.folders Portfolio是一个将字段文件夹作为数组的集合。 生产中的Mongodb包含这个。 即使我尝试在heroku rails控制台中做同样的事情我也得到了同样的错误：
TypeError: no implicit conversion of Fixnum into String from /app/vendor/bundle/ruby/2.0.0/gems/moped-1.4.3/lib/moped/protocol/commands/authenticate.rb:35:in `+' from /app/vendor/bundle/ruby/2.0.0/gems/moped-1.4.3/lib/moped/protocol/commands/authenticate.rb:35:in `digest' from /app/vendor/bundle/ruby/2.0.0/gems/moped-1.4.3/lib/moped/protocol/commands/authenticate.rb:47:in `build_auth_command' from /app/vendor/bundle/ruby/2.0.0/gems/moped-1.4.3/lib/moped/protocol/commands/authenticate.rb:25:in `initialize' from /app/vendor/bundle/ruby/2.0.0/gems/moped-1.4.3/lib/moped/node.rb:488:in `new' from /app/vendor/bundle/ruby/2.0.0/gems/moped-1.4.3/lib/moped/node.rb:488:in `login' from /app/vendor/bundle/ruby/2.0.0/gems/moped-1.4.3/lib/moped/node.rb:48:in `block in apply_auth' from /app/vendor/bundle/ruby/2.0.0/gems/moped-1.4.3/lib/moped/node.rb:47:in `each' from /app/vendor/bundle/ruby/2.0.0/gems/moped-1.4.3/lib/moped/node.rb:47:in `apply_auth' from /app/vendor/bundle/ruby/2.0.0/gems/moped-1.4.3/lib/moped/cluster.rb:250:in `with_secondary' from /app/vendor/bundle/ruby/2.0.0/gems/moped-1.4.3/lib/moped/session/context.rb:104:in `with_node' from /app/vendor/bundle/ruby/2.0.0/gems/moped-1.4.3/lib/moped/session/context.rb:43:in `query' from /app/vendor/bundle/ruby/2.0.0/gems/moped-1.4.3/lib/moped/query.rb:115:in `first' from /app/vendor/bundle/ruby/2.0.0/gems/mongoid-3.0.15/lib/mongoid/contextual/mongo.rb:233:in `last' from /app/vendor/bundle/ruby/2.0.0/gems/mongoid-3.0.15/lib/mongoid/contextual.rb:18:in `last' from /app/vendor/bundle/ruby/2.0.0/gems/mongoid-3.0.15/lib/mongoid/finders.rb:129:in `last' from (irb):2 from /app/vendor/bundle/ruby/2.0.0/gems/railties-3.2.12/lib/rails/commands/console.rb:47:in `start' from /app/vendor/bundle/ruby/2.0.0/gems/railties-3.2.12/lib/rails/commands/console.rb:8:in `start' from /app/vendor/bundle/ruby/2.0.0/gems/railties-3.2.12/lib/rails/commands.rb:41:in `' from script/rails:6:in `require'
在开发机器中我可以在控制台中执行此操作。 任何猜测为什么这个错误在heroku上。