首先我知道this error has already been listed here ，但问题不同。
我有一个 Rails 4 应用程序，我曾经在 Puma 上运行过。
然后，我的一个 friend 开发了该应用程序，并建议我们改用 Foreman。
所以，我曾经使用 rails s 在本地运行该应用程序在终端。
现在，我应该用 foreman start 来做这件事.
问题是，几乎每次我尝试启动该应用程序时，都会出现以下错误:
foreman start
08:42:28 web.1 | started with pid 3398
08:42:28 web.1 | [3398] Puma starting in cluster mode...
08:42:28 web.1 | [3398] * Version 2.13.4 (ruby 2.2.1-p85), codename: A Midsummer Code's Dream
08:42:28 web.1 | [3398] * Min threads: 5, max threads: 5
08:42:28 web.1 | [3398] * Environment: development
08:42:28 web.1 | [3398] * Process workers: 2
08:42:28 web.1 | [3398] * Preloading application
08:42:31 web.1 | [3398] * Listening on tcp://0.0.0.0:3000
08:42:31 web.1 | /Users/TXC/.rvm/gems/ruby-2.2.1/gems/puma-2.13.4/lib/puma/binder.rb:231:in `initialize': Address already in use - bind(2) for "0.0.0.0" port 3000 (Errno::EADDRINUSE)
08:42:31 web.1 | from /Users/TXC/.rvm/gems/ruby-2.2.1/gems/puma-2.13.4/lib/puma/binder.rb:231:in `new'
08:42:31 web.1 | from /Users/TXC/.rvm/gems/ruby-2.2.1/gems/puma-2.13.4/lib/puma/binder.rb:231:in `add_tcp_listener'
08:42:31 web.1 | from /Users/TXC/.rvm/gems/ruby-2.2.1/gems/puma-2.13.4/lib/puma/binder.rb:98:in `block in parse'
08:42:31 web.1 | from /Users/TXC/.rvm/gems/ruby-2.2.1/gems/puma-2.13.4/lib/puma/binder.rb:84:in `each'
08:42:31 web.1 | from /Users/TXC/.rvm/gems/ruby-2.2.1/gems/puma-2.13.4/lib/puma/binder.rb:84:in `parse'
08:42:31 web.1 | from /Users/TXC/.rvm/gems/ruby-2.2.1/gems/puma-2.13.4/lib/puma/runner.rb:119:in `load_and_bind'
08:42:31 web.1 | from /Users/TXC/.rvm/gems/ruby-2.2.1/gems/puma-2.13.4/lib/puma/cluster.rb:304:in `run'
08:42:31 web.1 | from /Users/TXC/.rvm/gems/ruby-2.2.1/gems/puma-2.13.4/lib/puma/cli.rb:215:in `run'
08:42:31 web.1 | from /Users/TXC/.rvm/gems/ruby-2.2.1/gems/puma-2.13.4/bin/puma:10:in `<top (required)>'
08:42:31 web.1 | from /Users/TXC/.rvm/gems/ruby-2.2.1/bin/puma:23:in `load'
08:42:31 web.1 | from /Users/TXC/.rvm/gems/ruby-2.2.1/bin/puma:23:in `<main>'
08:42:31 web.1 | from /Users/TXC/.rvm/gems/ruby-2.2.1/bin/ruby_executable_hooks:15:in `eval'
08:42:31 web.1 | from /Users/TXC/.rvm/gems/ruby-2.2.1/bin/ruby_executable_hooks:15:in `<main>'
08:42:31 web.1 | exited with code 1
08:42:31 system | sending SIGTERM to all processes
我怎样才能解决这个问题？
————
更新 :我也尝试了以下两种方法，as recommended here :
ps aux | grep rails
3547 0,0 0,0 2434840 752 s000 S+ 8:48 0:00.00 grep rails
但是没有
ruby bin/rails server然后:
lsof -wni tcp:3000
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
ruby 808 TXC 8u IPv4 0x4f6da234a6116dab 0t0 TCP *:hbci (LISTEN)
ruby 809 TXC 8u IPv4 0x4f6da234a6116dab 0t0 TCP *:hbci (LISTEN)
ruby 810 TXC 8u IPv4 0x4f6da234a6116dab 0t0 TCP *:hbci (LISTEN)
但我不确定我应该怎么做。
每次我想在本地启动应用程序时，我都应该重新启动计算机吗？
最佳答案
如果您使用的是 Puma，请运行 ps aux | grep puma
PID TT STAT TIME COMMAND
4662 0.0 0.1 4601556 8820 ?? S 10:48am 1:10.37 puma: cluster worker 1: 4395 [my-app]
4661 0.0 0.1 4882676 10300 ?? S 10:48am 2:14.49 puma: cluster worker 0: 4395 [my-app]
4395 ?? S 0:16.88 puma 3.12.1 (tcp://0.0.0.0:3000) [my-app]
然后杀死那些pid。
kill -9 4395 4661 4662
关于ruby-on-rails - 地址已在使用 - bind(2) 用于 "0.0.0.0"端口 3000 (Errno::EADDRINUSE)，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/35182860/