当我试图预编译我的资产时，我得到了以下错误。这是带有完整输出的跟踪：
RAILS_ENV=production bundle exec rake assets:precompile --trace
** Invoke assets:precompile (first_time)
** Invoke assets:environment (first_time)
** Execute assets:environment
** Invoke environment (first_time)
** Execute environment
rake aborted!
TypeError: can't dup NilClass
/var/lib/gems/2.3.0/gems/redis-activesupport-5.0.3/lib/active_support/cache/redis_store.rb:38:in `dup'
/var/lib/gems/2.3.0/gems/redis-activesupport-5.0.3/lib/active_support/cache/redis_store.rb:38:in `map'
/var/lib/gems/2.3.0/gems/redis-activesupport-5.0.3/lib/active_support/cache/redis_store.rb:38:in `initialize'
/var/lib/gems/2.3.0/gems/activesupport-5.0.5/lib/active_support/cache.rb:60:in `new'
/var/lib/gems/2.3.0/gems/activesupport-5.0.5/lib/active_support/cache.rb:60:in `lookup_store'
/var/lib/gems/2.3.0/gems/railties-5.0.5/lib/rails/application/bootstrap.rb:64:in `block in <module:Bootstrap>'
/var/lib/gems/2.3.0/gems/railties-5.0.5/lib/rails/initializable.rb:30:in `instance_exec'
/var/lib/gems/2.3.0/gems/railties-5.0.5/lib/rails/initializable.rb:30:in `run'
/var/lib/gems/2.3.0/gems/railties-5.0.5/lib/rails/initializable.rb:55:in `block in run_initializers'
/usr/lib/ruby/2.3.0/tsort.rb:228:in `block in tsort_each'
/usr/lib/ruby/2.3.0/tsort.rb:350:in `block (2 levels) in each_strongly_connected_component'
/usr/lib/ruby/2.3.0/tsort.rb:431:in `each_strongly_connected_component_from'
/usr/lib/ruby/2.3.0/tsort.rb:349:in `block in each_strongly_connected_component'
/usr/lib/ruby/2.3.0/tsort.rb:347:in `each'
/usr/lib/ruby/2.3.0/tsort.rb:347:in `call'
/usr/lib/ruby/2.3.0/tsort.rb:347:in `each_strongly_connected_component'
/usr/lib/ruby/2.3.0/tsort.rb:226:in `tsort_each'
/usr/lib/ruby/2.3.0/tsort.rb:205:in `tsort_each'
/var/lib/gems/2.3.0/gems/railties-5.0.5/lib/rails/initializable.rb:54:in `run_initializers'
/var/lib/gems/2.3.0/gems/railties-5.0.5/lib/rails/application.rb:352:in `initialize!'
/home/alex/Dev/livingrecipe/config/environment.rb:5:in `<top (required)>'
/var/lib/gems/2.3.0/gems/activesupport-5.0.5/lib/active_support/dependencies.rb:293:in `require'
/var/lib/gems/2.3.0/gems/activesupport-5.0.5/lib/active_support/dependencies.rb:293:in `block in require'
/var/lib/gems/2.3.0/gems/activesupport-5.0.5/lib/active_support/dependencies.rb:259:in `load_dependency'
/var/lib/gems/2.3.0/gems/activesupport-5.0.5/lib/active_support/dependencies.rb:293:in `require'
/var/lib/gems/2.3.0/gems/railties-5.0.5/lib/rails/application.rb:328:in `require_environment!'
/var/lib/gems/2.3.0/gems/railties-5.0.5/lib/rails/application.rb:448:in `block in run_tasks_blocks'
/var/lib/gems/2.3.0/gems/rake-12.0.0/lib/rake/task.rb:250:in `block in execute'
/var/lib/gems/2.3.0/gems/rake-12.0.0/lib/rake/task.rb:250:in `each'
/var/lib/gems/2.3.0/gems/rake-12.0.0/lib/rake/task.rb:250:in `execute'
/var/lib/gems/2.3.0/gems/rake-12.0.0/lib/rake/task.rb:194:in `block in invoke_with_call_chain'
/usr/lib/ruby/2.3.0/monitor.rb:214:in `mon_synchronize'
/var/lib/gems/2.3.0/gems/rake-12.0.0/lib/rake/task.rb:187:in `invoke_with_call_chain'
/var/lib/gems/2.3.0/gems/rake-12.0.0/lib/rake/task.rb:180:in `invoke'
/var/lib/gems/2.3.0/gems/sprockets-rails-3.2.0/lib/sprockets/rails/task.rb:62:in `block (2 levels) in define'
/var/lib/gems/2.3.0/gems/rake-12.0.0/lib/rake/task.rb:250:in `block in execute'
/var/lib/gems/2.3.0/gems/rake-12.0.0/lib/rake/task.rb:250:in `each'
/var/lib/gems/2.3.0/gems/rake-12.0.0/lib/rake/task.rb:250:in `execute'
/var/lib/gems/2.3.0/gems/rake-12.0.0/lib/rake/task.rb:194:in `block in invoke_with_call_chain'
/usr/lib/ruby/2.3.0/monitor.rb:214:in `mon_synchronize'
/var/lib/gems/2.3.0/gems/rake-12.0.0/lib/rake/task.rb:187:in `invoke_with_call_chain'
/var/lib/gems/2.3.0/gems/rake-12.0.0/lib/rake/task.rb:216:in `block in invoke_prerequisites'
/var/lib/gems/2.3.0/gems/rake-12.0.0/lib/rake/task.rb:214:in `each'
/var/lib/gems/2.3.0/gems/rake-12.0.0/lib/rake/task.rb:214:in `invoke_prerequisites'
/var/lib/gems/2.3.0/gems/rake-12.0.0/lib/rake/task.rb:193:in `block in invoke_with_call_chain'
/usr/lib/ruby/2.3.0/monitor.rb:214:in `mon_synchronize'
/var/lib/gems/2.3.0/gems/rake-12.0.0/lib/rake/task.rb:187:in `invoke_with_call_chain'
/var/lib/gems/2.3.0/gems/rake-12.0.0/lib/rake/task.rb:180:in `invoke'
/var/lib/gems/2.3.0/gems/rake-12.0.0/lib/rake/application.rb:152:in `invoke_task'
/var/lib/gems/2.3.0/gems/rake-12.0.0/lib/rake/application.rb:108:in `block (2 levels) in top_level'
/var/lib/gems/2.3.0/gems/rake-12.0.0/lib/rake/application.rb:108:in `each'
/var/lib/gems/2.3.0/gems/rake-12.0.0/lib/rake/application.rb:108:in `block in top_level'
/var/lib/gems/2.3.0/gems/rake-12.0.0/lib/rake/application.rb:117:in `run_with_threads'
/var/lib/gems/2.3.0/gems/rake-12.0.0/lib/rake/application.rb:102:in `top_level'
/var/lib/gems/2.3.0/gems/rake-12.0.0/lib/rake/application.rb:80:in `block in run'
/var/lib/gems/2.3.0/gems/rake-12.0.0/lib/rake/application.rb:178:in `standard_exception_handling'
/var/lib/gems/2.3.0/gems/rake-12.0.0/lib/rake/application.rb:77:in `run'
/var/lib/gems/2.3.0/gems/rake-12.0.0/exe/rake:27:in `<top (required)>'
/usr/local/bin/rake:23:in `load'
/usr/local/bin/rake:23:in `<main>'所以很不幸的是，我无法找出错误指向哪里，因为没有代码是我的东西，主要是跟踪由默认gem中的代码组成。我可以看到我在那里添加了一个引导gem，但即使我把它去掉，也会发生同样的事情。
4条答案
按热度按时间djmepvbi1#
您正在尝试在生产环境中编译资产，但您也在开发机器上。您确定在所有配置文件中都配置了生产环境吗？请查看config/cable.yml和config/redis.yml（如果存在）。
另外，在开发环境中编译资产的一个好方法是：
但是，在完成这些操作后，Rails将在开发中使用这些编译后的资产，而不是app/assets中的资产。最终，您还需要运行
RAILS_ENV=development bundle exec rake assets:clobber或rm -rf public/assets来清除开发环境中的这些编译后的资产。czq61nw12#
从您提交的堆栈跟踪中，看起来您应该检查
它很可能是空：
https://github.com/rails/rails/blob/87eb1a26da0b1385af07a8347dcfd32998a614ee/railties/lib/rails/application/bootstrap.rb#L67
5vf7fwbs3#
所以不确定是什么问题，但我更新了Ruby，Rails和我所有的gem，解决了这个问题。所以认为这是一个版本不匹配的兼容性问题
bd1hkmkf4#
看起来你有不正确的redis连接（或设置）
要对其进行调试，请执行以下操作：
1.在Rails控制台中调试Redis连接。从应用程序中使用Redis
require 'rubygems' =〉false require 'redis' =〉true r =Redis.new=〉#〈Redis client v2.2.1 connected to redis：127.0.0.1:6379/0（Redis v2.3.8）〉r.ping=〉“PONG”r.set（'foo '，'bar'）=〉“OK”r.get（'foo '）=〉“bar”
1.调试RedisStore
RedisStore.new（“localhost：6379/0/cache”，expires_in：90.minutes）
1.如果命令通过，请按照gem redis-rails中的描述为应用设置此配置
config/application.rb
配置.cache_store =：redis_store，“redis：//localhost：6379/0/cache”，{ expires_in：90分钟}
1.稍微调整一下配置，以建立到redis的成功连接（不要忘记生产环境中的不同环境配置！！！）
1.提交更改，重新部署。