我已经为Rails项目安装了slanger(和redis(。每个铁轨实例都关闭。
我运行redis-server，并且可以正常工作。但是后来我运行：
slanger --app_key MyPusherApiKey --secret MyPusherSecret
，它提出了下一个例外：
my-directory/rubies/ruby-2.2.3/lib/ruby/gems/2.2.0/gems/gems/eventmachine-1.9.1.9.9.9.9.9.9.dhib/lib/eventmachine.rb：534：在`ropt_tcp_server'in`start_tcp_server'：no正在使用或需要根特权((RunTimeError(
from my-directory/rubies/ruby-2.2.3/lib/ruby/gems/2.2.0/gems/eventmachine-1.0.9.1/lib/eventmachine.rb:534:in `start_server'
from my-directory/rubies/ruby-2.2.3/lib/ruby/gems/2.2.0/gems/em-websocket-0.5.1/lib/em-websocket/websocket.rb:46:in `run'
from my-directory/.rvm/rubies/ruby-2.2.3/lib/ruby/gems/2.2.0/gems/em-websocket-0.5.1/lib/em-websocket/websocket.rb:39:in `block in start'
from my-directory/.rvm/rubies/ruby-2.2.3/lib/ruby/gems/2.2.0/gems/eventmachine-1.0.9.1/lib/eventmachine.rb:170:in `call'
from my-directory/.rvm/rubies/ruby-2.2.3/lib/ruby/gems/2.2.0/gems/eventmachine-1.0.9.1/lib/eventmachine.rb:170:in `run'
我以为如果端口正在使用，我可以这样更改它：
slanger --app_key MyPusherApiKey --secret MyPusherSecret -a 0.0.0.0:3646
，但我仍然遇到相同的错误。有什么想法吗？
最后，我看到nginx使用了端口8080。停止nginx，我的工作正常。
nginx -s stop