我想建立一个应用程序，我可以在YouTube上搜索视频。似乎最受欢迎的选择是youtube_it gem。
我将gem添加到我的Gemfile中，并运行bundle install。当我执行bundle query --local时，我可以看到gem是预设的(版本2.1.4)。
所以，根据README，我似乎应该在我的控制器(?)做这样的事情:
class ConsoleController < ApplicationController
.
.
.
def search
require 'youtube_it'
client = YouTubeIt::Client.new(:dev_key => "my developer key")
end
end
但是我得到"cannot load such file——youtube_it"错误
如果我删除require函数，我得到"未初始化的常量ConsoleController::YouTubeIt"错误。
有人知道我在这里做错了什么吗?
更新:/Gemfile.lock
GEM
remote: https://rubygems.org/
specs:
actionmailer (4.0.3)
actionpack (= 4.0.3)
mail (~> 2.5.4)
actionpack (4.0.3)
activesupport (= 4.0.3)
builder (~> 3.1.0)
erubis (~> 2.7.0)
rack (~> 1.5.2)
rack-test (~> 0.6.2)
activemodel (4.0.3)
activesupport (= 4.0.3)
builder (~> 3.1.0)
activerecord (4.0.3)
activemodel (= 4.0.3)
activerecord-deprecated_finders (~> 1.0.2)
activesupport (= 4.0.3)
arel (~> 4.0.0)
activerecord-deprecated_finders (1.0.3)
activesupport (4.0.3)
i18n (~> 0.6, >= 0.6.4)
minitest (~> 4.2)
multi_json (~> 1.3)
thread_safe (~> 0.1)
tzinfo (~> 0.3.37)
addressable (2.3.6)
arel (4.0.2)
bcrypt (3.1.7)
bootstrap-sass (3.1.1.1)
sass (~> 3.2)
builder (3.1.4)
capybara (2.2.1)
mime-types (>= 1.16)
nokogiri (>= 1.3.3)
rack (>= 1.0.0)
rack-test (>= 0.5.4)
xpath (~> 2.0)
coderay (1.1.0)
coffee-rails (4.0.1)
coffee-script (>= 2.2.0)
railties (>= 4.0.0, < 5.0)
coffee-script (2.2.0)
coffee-script-source
execjs
coffee-script-source (1.7.0)
devise (3.2.4)
bcrypt (~> 3.0)
orm_adapter (~> 0.1)
railties (>= 3.2.6, < 5)
thread_safe (~> 0.1)
warden (~> 1.2.3)
diff-lcs (1.2.5)
erubis (2.7.0)
execjs (2.0.2)
factory_girl (4.2.0)
activesupport (>= 3.0.0)
factory_girl_rails (4.2.1)
factory_girl (~> 4.2.0)
railties (>= 3.0.0)
haml (4.0.5)
tilt
haml-rails (0.5.3)
actionpack (>= 4.0.1)
activesupport (>= 4.0.1)
haml (>= 3.1, < 5.0)
railties (>= 4.0.1)
hike (1.2.3)
i18n (0.6.9)
jbuilder (1.5.3)
activesupport (>= 3.0.0)
multi_json (>= 1.2.0)
jquery-rails (3.1.0)
railties (>= 3.0, < 5.0)
thor (>= 0.14, < 2.0)
json (1.8.1)
launchy (2.4.2)
addressable (~> 2.3)
mail (2.5.4)
mime-types (~> 1.16)
treetop (~> 1.4.8)
method_source (0.8.2)
mime-types (1.25.1)
mini_portile (0.5.3)
minitest (4.7.5)
multi_json (1.9.3)
nokogiri (1.6.1)
mini_portile (~> 0.5.0)
orm_adapter (0.5.0)
pg (0.17.1)
polyglot (0.3.4)
pry (0.9.12.6)
coderay (~> 1.0)
method_source (~> 0.8)
slop (~> 3.4)
pry-rails (0.3.2)
pry (>= 0.9.10)
rack (1.5.2)
rack-test (0.6.2)
rack (>= 1.0)
rails (4.0.3)
actionmailer (= 4.0.3)
actionpack (= 4.0.3)
activerecord (= 4.0.3)
activesupport (= 4.0.3)
bundler (>= 1.3.0, < 2.0)
railties (= 4.0.3)
sprockets-rails (~> 2.0.0)
railties (4.0.3)
actionpack (= 4.0.3)
activesupport (= 4.0.3)
rake (>= 0.8.7)
thor (>= 0.18.1, < 2.0)
rake (10.3.1)
rdoc (4.1.1)
json (~> 1.4)
rspec-core (2.14.8)
rspec-expectations (2.14.5)
diff-lcs (>= 1.1.3, < 2.0)
rspec-mocks (2.14.6)
rspec-rails (2.14.2)
actionpack (>= 3.0)
activemodel (>= 3.0)
activesupport (>= 3.0)
railties (>= 3.0)
rspec-core (~> 2.14.0)
rspec-expectations (~> 2.14.0)
rspec-mocks (~> 2.14.0)
sass (3.2.19)
sass-rails (4.0.3)
railties (>= 4.0.0, < 5.0)
sass (~> 3.2.0)
sprockets (~> 2.8, <= 2.11.0)
sprockets-rails (~> 2.0)
sdoc (0.4.0)
json (~> 1.8)
rdoc (~> 4.0, < 5.0)
slop (3.5.0)
sprockets (2.11.0)
hike (~> 1.2)
multi_json (~> 1.0)
rack (~> 1.0)
tilt (~> 1.1, != 1.3.0)
sprockets-rails (2.0.1)
actionpack (>= 3.0)
activesupport (>= 3.0)
sprockets (~> 2.8)
thor (0.19.1)
thread_safe (0.3.3)
tilt (1.4.1)
treetop (1.4.15)
polyglot
polyglot (>= 0.3.1)
turbolinks (2.2.2)
coffee-rails
tzinfo (0.3.39)
uglifier (2.5.0)
execjs (>= 0.3.0)
json (>= 1.8.0)
warden (1.2.3)
rack (>= 1.0)
xpath (2.0.0)
nokogiri (~> 1.3)
PLATFORMS
ruby
DEPENDENCIES
bootstrap-sass (~> 3.1.1)
capybara
coffee-rails (~> 4.0.0)
devise
factory_girl_rails (~> 4.2.1)
haml-rails
jbuilder (~> 1.2)
jquery-rails
launchy (~> 2.4.2)
pg
pry-rails
rails (= 4.0.3)
rspec-rails
sass-rails (~> 4.0.0)
sdoc
turbolinks
uglifier (>= 1.3.0)
似乎youtube_it gem还没有安装。仔细检查gem 'youtube_it'是否包含在Gemfile中，并运行bundle update
或者你也可以删除Gemfile.lock，然后运行bundle install