我在gemfile中添加了一个gem（gem＆＃39; presto-client＆＃39;，＆＃39;〜＆gt; 0.4.5＆＃39;）后，我进行了bundle install和bundle update。我的ruby版本是 - ＆gt;红宝石2.1.6 在启动rails应用程序时，我收到以下错误 -
/home/user/.rvm/gems/ruby-2.1.6/gems/tlsmail-0.0.1/lib/net/smtp.rb:806: warning: already initialized constant Net::SMTPSession
/home/user/.rvm/gems/ruby-2.1.6/gems/tlsmail-0.0.1/lib/net/smtp.rb:806: warning: previous definition of SMTPSession was here
/home/user/.rvm/gems/ruby-2.1.6/gems/tlsmail-0.0.1/lib/net/pop.rb:687: warning: already initialized constant Net::POP
/home/user/.rvm/gems/ruby-2.1.6/gems/tlsmail-0.0.1/lib/net/pop.rb:687: warning: previous definition of POP was here
/home/user/.rvm/gems/ruby-2.1.6/gems/tlsmail-0.0.1/lib/net/pop.rb:688: warning: already initialized constant Net::POPSession
/home/user/.rvm/gems/ruby-2.1.6/gems/tlsmail-0.0.1/lib/net/pop.rb:688: warning: previous definition of POPSession was here
/home/user/.rvm/gems/ruby-2.1.6/gems/tlsmail-0.0.1/lib/net/pop.rb:689: warning: already initialized constant Net::POP3Session
/home/user/.rvm/gems/ruby-2.1.6/gems/tlsmail-0.0.1/lib/net/pop.rb:689: warning: previous definition of POP3Session was here
/home/user/.rvm/gems/ruby-2.1.6/gems/tlsmail-0.0.1/lib/net/pop.rb:702: warning: already initialized constant Net::APOPSession
/home/user/.rvm/gems/ruby-2.1.6/gems/tlsmail-0.0.1/lib/net/pop.rb:702: warning: previous definition of APOPSession was here
/home/user/.rvm/gems/ruby-2.1.6/gems/bundler-1.11.2/lib/bundler/runtime.rb:80:in `rescue in block (2 levels) in require': There was an error while trying to load the gem 'activeadmin'. (Bundler::GemRequireError)
from /home/user/.rvm/gems/ruby-2.1.6/gems/bundler-1.11.2/lib/bundler/runtime.rb:76:in `block (2 levels) in require'
from /home/user/.rvm/gems/ruby-2.1.6/gems/bundler-1.11.2/lib/bundler/runtime.rb:72:in `each'
from /home/user/.rvm/gems/ruby-2.1.6/gems/bundler-1.11.2/lib/bundler/runtime.rb:72:in `block in require'
from /home/user/.rvm/gems/ruby-2.1.6/gems/bundler-1.11.2/lib/bundler/runtime.rb:61:in `each'
from /home/user/.rvm/gems/ruby-2.1.6/gems/bundler-1.11.2/lib/bundler/runtime.rb:61:in `require'
from /home/user/.rvm/gems/ruby-2.1.6/gems/bundler-1.11.2/lib/bundler.rb:99:in `require'
from /home/user/src/qbol/tapp/config/application.rb:8:in `<top (required)>'
from /home/user/.rvm/gems/ruby-2.1.6/gems/railties-3.2.17/lib/rails/commands.rb:53:in `require'
from /home/user/.rvm/gems/ruby-2.1.6/gems/railties-3.2.17/lib/rails/commands.rb:53:in `block in <top (required)>'
from /home/user/.rvm/gems/ruby-2.1.6/gems/railties-3.2.17/lib/rails/commands.rb:50:in `tap'
from /home/user/.rvm/gems/ruby-2.1.6/gems/railties-3.2.17/lib/rails/commands.rb:50:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'
Activeadmin已安装在我的系统上。
bundle show activeadmin
/home/user/.rvm/gems/ruby-2.1.6/gems/activeadmin-0.6.6
以下是我的宝石文件 -
source 'http://rubygems.org'
gem 'rails', '3.2.17'
# Bundle edge Rails instead:
# gem 'rails', :git => 'git://github.com/rails/rails.git'
gem 'sqlite3'
gem 'rabl', '~> 0.8.0'
gem 'yajl-ruby'
gem 'json'
gem "zendesk_api"
gem 'google-api-client'
gem 'ruby-saml'
#gem 'presto-client', '~> 0.4.8'
gem 'jquery-rails'
gem 'therubyracer', '~> 0.12.0'
gem 'activevalidators', '~> 1.8.1'
# To use ActiveModel has_secure_password
# gem 'bcrypt-ruby', '~> 3.0.0'
# Use unicorn as the web server
# gem 'unicorn'
# Deploy with Capistrano
# gem 'capistrano'
# To use debugger
# gem 'ruby-debug'
gem 'mysql2', '~> 0.3'
gem 'annotate'
gem 'will_paginate'
gem 'net-ssh', '~> 2.7.0'
gem 'dogapi'
gem 'devise', '~> 1.5.2'
gem 'haml'
gem 'cancan'
gem 'open4'
gem 'tlsmail'
gem 'backgroundrb-rails3', :require => 'backgroundrb'
gem 'jslint_on_rails'
gem 'flash_render'
gem 'dbi', '~> 0.4.5'
gem 'dbd-mysql'
gem 'uuidtools'
gem 'aws-sdk', '1.40.3'
gem 'aws-sdk-resources', '~> 2'
gem 'algorithms'
gem 'ezcrypto'
gem 'delayed_job_active_record'
gem "daemons", '~>1.0.10'
gem 'activeadmin'
gem 'sass-rails', '~> 3.2.6'
gem "meta_search", '>= 1.1.0.pre'
gem "switch_user"
gem "stripe", '>= 1.7.4'
gem 'acts_as_paranoid', '~> 0.4.3'
gem 'lhm', '2.2.0'
我还完成了捆绑更新和捆绑安装。
我正在尝试运行所有给出here的命令，但由于我收到错误无法加载activeadmin错误，因此我无法运行第一步。 我该如何解决这个错误？
修改 在做一个宝石列表我得到 - activeadmin（0.6.6,0.6.0,0.5.1），Irestricted activeadmin在gem文件中使用0.6.6版本，但我仍然遇到同样的错误。
答案 0 :(得分：1)
尝试安装nodejs，编译某些资产需要JavaScript运行时，我认为这是个问题。 至少为我工作：
ArchLinux：pacman -S nodejs
Ubuntu：apt-get install nodejs
Mac：可能使用自制软件
答案 1 :(得分：0)
在1.0 pre4版本中遇到相同的错误
gem 'activeadmin', '~> 1.0.0.pre4'
我将其更改为：
gem 'activeadmin'
再次运行捆绑程序后，
bundle
它安装了适用于我的最新版本。
Fetching activeadmin 1.3.1
Installing activeadmin 1.3.1