ruby - Can't dup NilClass on rails rake with assets:precompile -


when try precompile assets following error. trace full output:

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>'

so unfortunately can't figure out error pointing none of code stuff , trace consists of code default gems. 1 thing can see have added in there bootstrap gem, same thing happens if take out.

it looks have incorrect redis connection (or setup)

to debug it:

1) debug redis connection in rails console. using redis application

>> require 'rubygems' => false >> require 'redis' => true >> r = redis.new => #<redis client v2.2.1 connected redis://127.0.0.1:6379/0 (redis v2.3.8)> >> r.ping => "pong" >> r.set('foo','bar') => "ok" >> r.get('foo') => "bar"

2) debug redisstore

redisstore.new("localhost:6379/0/cache", expires_in: 90.minutes)

3) if command passed, set config app it's described in gem redis-rails

# config/application.rb config.cache_store = :redis_store, "redis://localhost:6379/0/cache", { expires_in: 90.minutes }

4) play configuration little establish successful connection redis (and don't forget different environment configs in production!!!)

5) commit changes, redeploy.


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