I have had this problem for a while but have found no solution. I am building a forums application in rails. I had just finished adding bootstrap and the bootstrap gem to my project. I go to run the server and it exits with a huge error. Here it is.
Julies-MacBook-Air:railsnew juliechopourian$ rails server
=> Booting Puma
=> Rails 5.0.0.1 application starting in development on http://localhost:3000
=> Runrails server -hfor more startup options
Puma starting in single mode...
* Version 3.6.0 (ruby 2.3.1-p112), codename: Sleepy Sunday Serenity
* Min threads: 5, max threads: 5
* Environment: development
* Listening on tcp://localhost:3000
Exiting
/Users/juliechopourian/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/puma-3.6.0/lib/puma/binder.rb:266:ininitialize': Address already in use - bind(2) for "::1" port 3000 (Errno::EADDRINUSE)
from /Users/juliechopourian/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/puma-3.6.0/lib/puma/binder.rb:266:in new'
from /Users/juliechopourian/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/puma-3.6.0/lib/puma/binder.rb:266:inadd_tcp_listener'
from /Users/juliechopourian/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/puma-3.6.0/lib/puma/binder.rb:260:in block in add_tcp_listener'
from /Users/juliechopourian/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/puma-3.6.0/lib/puma/binder.rb:259:ineach'
from /Users/juliechopourian/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/puma-3.6.0/lib/puma/binder.rb:259:in add_tcp_listener'
from /Users/juliechopourian/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/puma-3.6.0/lib/puma/binder.rb:102:inblock in parse'
from /Users/juliechopourian/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/puma-3.6.0/lib/puma/binder.rb:85:in each'
from /Users/juliechopourian/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/puma-3.6.0/lib/puma/binder.rb:85:inparse'
from /Users/juliechopourian/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/puma-3.6.0/lib/puma/runner.rb:133:in load_and_bind'
from /Users/juliechopourian/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/puma-3.6.0/lib/puma/single.rb:85:inrun'
from /Users/juliechopourian/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/puma-3.6.0/lib/puma/launcher.rb:172:in run'
from /Users/juliechopourian/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/puma-3.6.0/lib/rack/handler/puma.rb:51:inrun'
from /Users/juliechopourian/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/rack-2.0.1/lib/rack/server.rb:296:in start'
from /Users/juliechopourian/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-5.0.0.1/lib/rails/commands/server.rb:79:instart'
from /Users/juliechopourian/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-5.0.0.1/lib/rails/commands/commands_tasks.rb:90:in block in server'
from /Users/juliechopourian/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-5.0.0.1/lib/rails/commands/commands_tasks.rb:85:intap'
from /Users/juliechopourian/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-5.0.0.1/lib/rails/commands/commands_tasks.rb:85:in server'
from /Users/juliechopourian/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-5.0.0.1/lib/rails/commands/commands_tasks.rb:49:inrun_command!'
from /Users/juliechopourian/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-5.0.0.1/lib/rails/commands.rb:18:in <top (required)>'
from /Users/juliechopourian/treehouse/rails_app/railsnew/bin/rails:9:inrequire'
from /Users/juliechopourian/treehouse/rails_app/railsnew/bin/rails:9:in <top (required)>'
from /Users/juliechopourian/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-1.7.2/lib/spring/client/rails.rb:28:inload'
from /Users/juliechopourian/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-1.7.2/lib/spring/client/rails.rb:28:in call'
from /Users/juliechopourian/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-1.7.2/lib/spring/client/command.rb:7:incall'
from /Users/juliechopourian/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-1.7.2/lib/spring/client.rb:30:in run'
from /Users/juliechopourian/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-1.7.2/bin/spring:49:in'
from /Users/juliechopourian/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-1.7.2/lib/spring/binstub.rb:11:in load'
from /Users/juliechopourian/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-1.7.2/lib/spring/binstub.rb:11:in'
from /Users/juliechopourian/.rbenv/versions/2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in require'
from /Users/juliechopourian/.rbenv/versions/2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:inrequire'
from /Users/juliechopourian/treehouse/rails_app/railsnew/bin/spring:13:in <top (required)>'
from bin/rails:3:inload'
from bin/rails:3:in <main>'
Julies-MacBook-Air:railsnew juliechopourian$
I think it might have something to do with the puma gem but I really don't know. Any help would be very appreciated. Tell me if I need to post any more of my project.
