gem 列表如下： mongo (1.8.2) mongoid (3.0.17) mongoid-grid_fs (1.7.0) carrierwave (0.8.0) carrierwave-mongoid (0.4.0)

carrierwave.rb 文件配置

require 'carrierwave/mongoid' CarrierWave.configure do |config| config.grid_fs_database = Mongoid::Config.sessions[:default] config.grid_fs_port = 27017 config.grid_fs_host = '127.0.0.1' config.storage = :grid_fs end

启动时候 报错 undefined method `grid_fs_database=' for CarrierWave::Uploader::Base:Class (NoMethodError)