ruby-on-rails - 耙黑子:solr:开始引发错误

我正在尝试将Sunspot与Rails 4结合使用，但遇到了一些问题。当我的gemfile中只有gem 'sunspot_rails', '2.0.0'时，出现此错误：

Note: This task has been moved to the sunspot_solr gem. To install, start and
  stop a local Solr instance, please add sunspot_solr to your Gemfile:
  group :development do
    gem 'sunspot_solr'
 end

但是当我添加该gem（也v 2.0.0）时，出现此错误：

rake aborted!
Don't know how to build task 'sunspot:solr:start'
/home/toasty/.rvm/gems/ruby-2.0.0-p195/bin/ruby_noexec_wrapper:14:in `eval'
/home/toasty/.rvm/gems/ruby-2.0.0-p195/bin/ruby_noexec_wrapper:14:in `<main>'
(See full trace by running task with --trace)

我已经看到了这个问题：
Sunspot/Solr raketasks not loading in Rails 3 Mountable Engine
但对于我来说似乎不起作用。有人有什么想法吗？ sunspot_solr是否仅与rails 4不兼容？

最佳答案

我有同样的问题。我不记得了，但我发现您需要添加此rake任务

lib/tasks/solr.rake

namespace :sunspot do
  namespace :solr do
  desc 'Start the Solr instance'
    task :start => :environment do
      case RUBY_PLATFORM
        when /w(in)?32$/, /java$/
          abort("This command is not supported on #{RUBY_PLATFORM}. " +
          "Use rake sunspot:solr:run to run Solr in the foreground.")
     end

  if defined?(Sunspot::Rails::Server)
    Sunspot::Rails::Server.new.start
  else
    Sunspot::Solr::Server.new.start
  end
  puts "Successfully started Solr ..."
end

desc 'Run the Solr instance in the foreground'
task :run => :environment do
  if defined?(Sunspot::Rails::Server)
    Sunspot::Rails::Server.new.run
  else
    Sunspot::Solr::Server.new.run
  end
end

desc 'Stop the Solr instance'
task :stop => :environment do
  case RUBY_PLATFORM
  when /w(in)?32$/, /java$/
    abort("This command is not supported on #{RUBY_PLATFORM}. " +
          "Use rake sunspot:solr:run to run Solr in the foreground.")
  end

  if defined?(Sunspot::Rails::Server)
    Sunspot::Rails::Server.new.stop
  else
    Sunspot::Solr::Server.new.stop
  end
  puts "Successfully stopped Solr ..."
end

# for backwards compatibility
task :reindex => :"sunspot:reindex"
end
end

编辑〜Source of Rakefile