# "gem install rails" error on Windows

**URL:** <https://www.ruby-forum.com/t/gem-install-rails-error-on-windows/167227>\
**Category:** Rails\
**Created:** [May 5, 2009, 5:46pm UTC](https://www.ruby-forum.com/t/gem-install-rails-error-on-windows/167227 "2009-05-05T17:46:06Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![danieljianu](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/cdc98d/32.png) [@danieljianu](https://www.ruby-forum.com/u/danieljianu)\
**Post date:** [May 5, 2009, 5:46pm UTC](https://www.ruby-forum.com/t/gem-install-rails-error-on-windows/167227/1 "2009-05-05T17:46:06Z")

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Hello all.

I’m having the following problem and I can’t seem to find a solution  
for it:  
running “gem install rails” on a Windows environment generates  
“ERROR: While executing gem … (Zlib::BufError) buffer error”

I’ve tried ‘gem update --system’, but with no success. I am out of  
sollutions but not out of hope (yet).  
Please, can anyone point me in the right direction?

Thanks a lot,  
Daniel

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<div class="post-metadata">

**Author:** ![danieljianu](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/cdc98d/32.png) [@danieljianu](https://www.ruby-forum.com/u/danieljianu)\
**Post date:** [May 5, 2009, 6:19pm UTC](https://www.ruby-forum.com/t/gem-install-rails-error-on-windows/167227/2 "2009-05-05T18:19:36Z")

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What version of Ruby are you running?

(Run ruby -v from the command prompt)

Here is a link to a similar problem -  
[http://dev.rubyonrails.org/ticket/7305](http://dev.rubyonrails.org/ticket/7305)