# Unhandled listen loop exception - InstantRails 2.0

**URL:** <https://www.ruby-forum.com/t/unhandled-listen-loop-exception-instantrails-2-0/142136>\
**Category:** Ruby\
**Created:** [July 3, 2008, 7:31pm UTC](https://www.ruby-forum.com/t/unhandled-listen-loop-exception-instantrails-2-0/142136 "2008-07-03T19:31:28Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![mawiniarski](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/fbc32d/32.png) [@mawiniarski](https://www.ruby-forum.com/u/mawiniarski)\
**Post date:** [July 3, 2008, 7:31pm UTC](https://www.ruby-forum.com/t/unhandled-listen-loop-exception-instantrails-2-0/142136/1 "2008-07-03T19:31:28Z")

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Greetings,

I’ve downloaded InstantRails 2.0.

Run it (with default server and dbase)

Created new project,  
run “Start with Mongrel”  
and tried to access it through [http://localhost](http://localhost):port/

Unfortunatelly It returns:

Unhandled listen loop exception #(Errno::ENOTSOCK An operation was  
attepmted  
on something that is not a socket.).

Any suggestions ??

Thank You