# Ruby/lib/ruby/site\_ruby/1.8/rubygems.rb:270:in \`activate': u

**URL:** <https://www.ruby-forum.com/t/ruby-lib-ruby-site-ruby-1-8-rubygems-rbin-activate-u/190139>\
**Category:** Rails\
**Created:** [June 16, 2010, 8:04pm UTC](https://www.ruby-forum.com/t/ruby-lib-ruby-site-ruby-1-8-rubygems-rbin-activate-u/190139 "2010-06-16T20:04:18Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![mamadoutoure](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/ecb155/32.png) [@mamadoutoure](https://www.ruby-forum.com/u/mamadoutoure)\
**Post date:** [June 16, 2010, 8:04pm UTC](https://www.ruby-forum.com/t/ruby-lib-ruby-site-ruby-1-8-rubygems-rbin-activate-u/190139/1 "2010-06-16T20:04:18Z")

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Hi folks,

I’m getting the following error while trying to start the Webrick serve  
on a old project that I just checked out from our svn. Could you tell me  
what’s wrong ?

ruby/lib/ruby/site\_ruby/1.8/rubygems.rb:270:in `activate': undefined method`map’ for nil:NilClass (NoMethodError)

---

<div class="post-metadata">

**Author:** ![mamadoutoure](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/ecb155/32.png) [@mamadoutoure](https://www.ruby-forum.com/u/mamadoutoure)\
**Post date:** [June 16, 2010, 8:20pm UTC](https://www.ruby-forum.com/t/ruby-lib-ruby-site-ruby-1-8-rubygems-rbin-activate-u/190139/2 "2010-06-16T20:20:47Z")

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Mamadou Touré wrote:

> Hi folks,
> 
> I’m getting the following error while trying to start the Webrick serve  
> on a old project that I just checked out from our svn. Could you tell me  
> what’s wrong ?
> 
> ruby/lib/ruby/site\_ruby/1.8/rubygems.rb:270:in `activate': undefined method`map’ for nil:NilClass (NoMethodError)

Looks like a version issue, though I can’t be sure.