# Uninitialized constant OpenSSL::Digest::SHA1

**URL:** <https://www.ruby-forum.com/t/uninitialized-constant-openssl-sha1/57639>\
**Category:** Rails\
**Created:** [April 12, 2006, 6:34pm UTC](https://www.ruby-forum.com/t/uninitialized-constant-openssl-sha1/57639 "2006-04-12T18:34:11Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![slain](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/2acd7d/32.png) [@slain](https://www.ruby-forum.com/u/slain)\
**Post date:** [April 12, 2006, 6:34pm UTC](https://www.ruby-forum.com/t/uninitialized-constant-openssl-sha1/57639/1 "2006-04-12T18:34:11Z")

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I just updated my ruby from 1.8.2 to the Windows Installer 184-16 RC1,  
and now when I try to start Webrick I get the following:

c:/program  
files/dev/ruby/lib/ruby/site\_ruby/1.8/rubygems/security.rb:18:  
uninitialized constant OpenSSL::Digest::SHA1 (NameError)  
from c:/program files/dev/ruby/lib/ruby/site\_ruby/1.8/rubygems.rb:397  
from c:/program files/dev/ruby/lib/ruby/site\_ruby/1.8/ubygems.rb:4

From security.rb:  
if Gem.ssl\_available?  
PKEY\_RSA = OpenSSL::PKey::RSA  
(18) DIGEST\_SHA1 = OpenSSL::Digest::SHA1

Any ideas?

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<div class="post-metadata">

**Author:** ![slain](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/2acd7d/32.png) [@slain](https://www.ruby-forum.com/u/slain)\
**Post date:** [April 12, 2006, 7:42pm UTC](https://www.ruby-forum.com/t/uninitialized-constant-openssl-sha1/57639/2 "2006-04-12T19:42:01Z")

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So I started from a fresh directory and that bug went away, but now  
Webbrick says Booting then just exits without any message…

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<div class="post-metadata">

**Author:** ![slain](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/2acd7d/32.png) [@slain](https://www.ruby-forum.com/u/slain)\
**Post date:** [April 20, 2006, 11:19am UTC](https://www.ruby-forum.com/t/uninitialized-constant-openssl-sha1/57639/3 "2006-04-20T11:19:47Z")

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slain wilde wrote:

> So I started from a fresh directory and that bug went away, but now  
> Webbrick says Booting then just exits without any message…

Hi Slain,

don’t know if this will fix your problem, but I got a similar error  
after updating to 184-16 RC1 in order to install Mongrel.

What worked for me (from a bug report on Rubyforge at  
[http://rubyforge.org/tracker/index.php?func=detail&aid=3248&group\_id=126&atid=575](http://rubyforge.org/tracker/index.php?func=detail&aid=3248&group_id=126&atid=575))  
was

"  
adding :  
–begin code–  
require ‘openssl/digest’  
–end code–  
to gem\_openssl.rb after line 28 (require ‘openssl’)  
"

hope this helps

Stuart

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<div class="post-metadata">

**Author:** ![slain](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/2acd7d/32.png) [@slain](https://www.ruby-forum.com/u/slain)\
**Post date:** [April 20, 2006, 5:06pm UTC](https://www.ruby-forum.com/t/uninitialized-constant-openssl-sha1/57639/4 "2006-04-20T17:06:04Z")

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Yea, I got it to work (SHA1) by installing ruby to a fresh(empty)  
directory. My webrick not starting problem was because I needed to  
upgrade engines for 1.1 or it silently killed webrick.

Thanks tho.