# All mongrels crashing

**URL:** <https://www.ruby-forum.com/t/all-mongrels-crashing/146863>\
**Category:** Mongrel\
**Created:** [August 26, 2008, 9:34am UTC](https://www.ruby-forum.com/t/all-mongrels-crashing/146863 "2008-08-26T09:34:49Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![willwach](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/w/c68b51/32.png) [@willwach](https://www.ruby-forum.com/u/willwach)\
**Post date:** [August 26, 2008, 9:34am UTC](https://www.ruby-forum.com/t/all-mongrels-crashing/146863/1 "2008-08-26T09:34:49Z")

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Hi,

I got a problem running a rails app on swiftiply (0.6.1.1)/mongrel  
(1.1.4).  
It’s running on a Debian 4.0 Etch, rails 1.2.6, ruby 1.8.

Mostly its running fine, but sometimes ALL mongrels die with the  
following messages in mongrel.log

/var/lib/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/rails.rb:54:in  
`escape': can't convert nil into String (TypeError) from /var/lib/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/configurator.rb:303:in`join’  
from  
/var/lib/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/configurator.rb:303:in  
`join' from /var/lib/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/configurator.rb:303:in`each’  
from  
/var/lib/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/configurator.rb:303:in  
`join' from /var/lib/gems/1.8/gems/swiftiply-0.6.1.1/bin/mongrel_rails:145:in`run’  
from  
/var/lib/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/command.rb:212:in `run' from /var/lib/gems/1.8/gems/swiftiply-0.6.1.1/bin/mongrel_rails:252 from /var/lib/gems/1.8/bin/mongrel_rails:18:in`load’  
from /var/lib/gems/1.8/bin/mongrel\_rails:18

I can not reproduce this error. But think it has to do with  
“Mongrel::Const::PATH\_INFO” not set.  
Would be fine if some knows how to fix this.

Many thanks,  
marc