# Crash on attempt to configure capistrano

**URL:** <https://www.ruby-forum.com/t/crash-on-attempt-to-configure-capistrano/181716>\
**Category:** Deployment\
**Created:** [January 16, 2010, 9:22pm UTC](https://www.ruby-forum.com/t/crash-on-attempt-to-configure-capistrano/181716 "2010-01-16T21:22:56Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![trapper](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/2acd7d/32.png) [@trapper](https://www.ruby-forum.com/u/trapper)\
**Post date:** [January 16, 2010, 9:22pm UTC](https://www.ruby-forum.com/t/crash-on-attempt-to-configure-capistrano/181716/1 "2010-01-16T21:22:56Z")

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I’m new with capistrano ant tried to configure my server usind:

cap mongrel:cluster:configure

And got this error backtrace:

/usr/lib/ruby/gems/1.8/gems/capistrano-2.5.13/lib/capistrano/configuration/variables.rb:122:in  
`method_missing': undefined method`sset’ for  
#Capistrano::Configuration:0xb77f87dc (NoMethodError)  
from ./config/deploy.rb:4:in `load' from /usr/lib/ruby/gems/1.8/gems/capistrano-2.5.13/lib/capistrano/configuration/loading.rb:172:in`load\_from\_file’  
…

How to fix that problem?

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<div class="post-metadata">

**Author:** ![trapper](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/2acd7d/32.png) [@trapper](https://www.ruby-forum.com/u/trapper)\
**Post date:** [January 16, 2010, 10:59pm UTC](https://www.ruby-forum.com/t/crash-on-attempt-to-configure-capistrano/181716/2 "2010-01-16T22:59:05Z")

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Ok, it was a typo in my deploy.rb.

But fixing this, I run into the next trouble:

cap mongrel:cluster:configure

ends now with

the task `mongrel:cluster:configure’ does not exist

Why this?

---

<div class="post-metadata">

**Author:** ![trapper](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/2acd7d/32.png) [@trapper](https://www.ruby-forum.com/u/trapper)\
**Post date:** [January 25, 2010, 11:43pm UTC](https://www.ruby-forum.com/t/crash-on-attempt-to-configure-capistrano/181716/3 "2010-01-25T23:43:53Z")

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OK, next round in this deployment nightmare:

I configured my server, as decribed in “Agile Web D. with Rails  
Third Edition”:

- installed rails etc.

- installed & configured apache2 w/ Passenger on a virtual Ubuntu 9.10  
server

- created a user ‘oag’ on the server and su’ed to oag

- created a git repository on the server and pushed my local repository

- run  
test -e ~/.ssh/id\_dsa.pub || ssh-keygen -t dsa  
cat ~/.ssh/id\_dsa.pub \>\> ~/.ssh/authorized\_keys2  
on the server

- run  
cap deploy:setup  
localy - OK

- run  
cap deploy:check  
localy. Answer: You appear to have all necessary dependencies  
installed

- run  
cap deploy:migrations  
localy. Answer:

The desaster begins after (successfully) entering the server user’s  
(oag) password the second time.

Inspecting the auth.log of the server I don’t find any notice on failed  
authentication.

What is the reason for this this “Host key verification failed”?  
Where or how to find more information?