# Capistrano / Net-ssh install errors skipping require of

**URL:** <https://www.ruby-forum.com/t/capistrano-net-ssh-install-errors-skipping-require-of/112972>\
**Category:** Rails\
**Created:** [August 25, 2007, 3:14am UTC](https://www.ruby-forum.com/t/capistrano-net-ssh-install-errors-skipping-require-of/112972 "2007-08-25T03:14:52Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![brianzimmer](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/6f9a4e/32.png) [@brianzimmer](https://www.ruby-forum.com/u/brianzimmer)\
**Post date:** [August 25, 2007, 3:14am UTC](https://www.ruby-forum.com/t/capistrano-net-ssh-install-errors-skipping-require-of/112972/1 "2007-08-25T03:14:52Z")

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I’m trying to find out why capistrano will not run on my computer.

I am running Ubuntu 6.06 dapper drake.  
Rails 1.2.3

I get errors when i try to run cap -h or cap anything…

/usr/lib/ruby/gems/1.8/gems/net-ssh-1.1.2/lib/net/ssh/transport/ossl/hmac/none.rb:27:  
uninitialized constant Net::SSH::Transport::OSSL::HMAC::Abstract  
(NameError)

When i install net-ssh i get the message

lib/net/ssh/transport/ossl/hmac/services.rb:31:63: Skipping require of  
dynamic string: “net/ssh/transport/ossl/hmac/#{name}”

full error messages:  
[http://pastie.caboo.se/90786](http://pastie.caboo.se/90786)

It must be something to do with my system because I can’t find much  
information regarding this “error”

Any help or suggestions appreciated.

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<div class="post-metadata">

**Author:** ![brianzimmer](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/6f9a4e/32.png) [@brianzimmer](https://www.ruby-forum.com/u/brianzimmer)\
**Post date:** [August 30, 2007, 2:22am UTC](https://www.ruby-forum.com/t/capistrano-net-ssh-install-errors-skipping-require-of/112972/2 "2007-08-30T02:22:26Z")

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Brian Z. wrote:

/usr/lib/ruby/gems/1.8/gems/net-ssh-1.1.2/lib/net/ssh/transport/ossl/hmac/none.rb:27:

> uninitialized constant Net::SSH::Transport::OSSL::HMAC::Abstract  
> (NameError)

Use the older Capistrano version, like 1.4.

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<div class="post-metadata">

**Author:** ![brianzimmer](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/6f9a4e/32.png) [@brianzimmer](https://www.ruby-forum.com/u/brianzimmer)\
**Post date:** [October 10, 2007, 8:32am UTC](https://www.ruby-forum.com/t/capistrano-net-ssh-install-errors-skipping-require-of/112972/3 "2007-10-10T08:32:34Z")

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Dmitry Tupitsyn wrote:

> Brian Z. wrote:
> 
> /usr/lib/ruby/gems/1.8/gems/net-ssh-1.1.2/lib/net/ssh/transport/ossl/hmac/none.rb:27:
> 
> > uninitialized constant Net::SSH::Transport::OSSL::HMAC::Abstract  
> > (NameError)
> 
> Use the older Capistrano version, like 1.4.

I think u have to install libopenssl library

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<div class="post-metadata">

**Author:** ![brianzimmer](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/6f9a4e/32.png) [@brianzimmer](https://www.ruby-forum.com/u/brianzimmer)\
**Post date:** [October 10, 2007, 3:30pm UTC](https://www.ruby-forum.com/t/capistrano-net-ssh-install-errors-skipping-require-of/112972/4 "2007-10-10T15:30:13Z")

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Selvaraj S. wrote:

> Dmitry Tupitsyn wrote:
> 
> > Brian Z. wrote:
> > 
> > /usr/lib/ruby/gems/1.8/gems/net-ssh-1.1.2/lib/net/ssh/transport/ossl/hmac/none.rb:27:
> > 
> > > uninitialized constant Net::SSH::Transport::OSSL::HMAC::Abstract  
> > > (NameError)
> > 
> > Use the older Capistrano version, like 1.4.
> 
> I think u have to install libopenssl library

Once I installed capistrano 1.4 it started working great, I could then  
run the cap -h command and there weren’t any errors coming up.