Killing will re-start the rails s Process

After running rails S, the following error occurs:

/. Rvm/gems/ruby-1.9.3-p374/gems/eventmachine-1.0.3/lib/eventmachine. RB: 526: In 'start _ tcp_server ': No acceptor (port is in use or requires root privileges) (runtimeerror)

Solution 1: rails S-p4000 enables another port. 4000 can be replaced by any other number.

If you do not want to enable other ports, run the second solution:

Run:

$ PS ax | grep rails
Running result:

12694 pts/0 tl xx/. rvm/rubies/ruby-1.9.3-p374/bin/Ruby script/rails s
17762 pts/8 SL + XX/. rvm/rubies/ruby-1.9.3-p374/bin/Ruby script/rails C
19554 pts/0 S + grep rails

Run: Kill-9 12694 to kill the process.

Rails S is fine.

 

Killing will re-start the rails s Process