# Problems Installing Rails 3 on a new Machine

**URL:** <https://www.ruby-forum.com/t/problems-installing-rails-3-on-a-new-machine/195898>\
**Category:** Rails\
**Created:** [October 2, 2010, 8:29am UTC](https://www.ruby-forum.com/t/problems-installing-rails-3-on-a-new-machine/195898 "2010-10-02T08:29:50Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![nobosh](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/ecb155/32.png) [@nobosh](https://www.ruby-forum.com/u/nobosh)\
**Post date:** [October 2, 2010, 8:29am UTC](https://www.ruby-forum.com/t/problems-installing-rails-3-on-a-new-machine/195898/1 "2010-10-02T08:29:50Z")

</div>

Trying to install rails 3 on a new macbook pro.

$ rails -v  
Could not find bcrypt-ruby-2.1.2 in any of the sources  
Try running `bundle install`.

$ bundle install  
.  
.

Installing bcrypt-ruby (2.1.2) with native extensions /Library/Ruby/  
Site/1.8/rubygems/installer.rb:483:in `build\_extensions’: ERROR:  
Failed to build gem native extension.  
(Gem::Installer::ExtensionBuildError)

/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby  
extconf.rb  
mkmf.rb can’t find header files for ruby at /System/Library/Frameworks/  
Ruby.framework/Versions/1.8/usr/lib/ruby/ruby.h

Gem files will remain installed in /Library/Ruby/Gems/1.8/gems/bcrypt-  
ruby-2.1.2 for inspection.

* * *

Has anyone else had this problem with bcrypt?

---

<div class="post-metadata">

**Author:** ![nobosh](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/ecb155/32.png) [@nobosh](https://www.ruby-forum.com/u/nobosh)\
**Post date:** [October 2, 2010, 8:43pm UTC](https://www.ruby-forum.com/t/problems-installing-rails-3-on-a-new-machine/195898/2 "2010-10-02T20:43:45Z")

</div>

Turns out I needed to install xcode on the mac - that fixed it

---

<div class="post-metadata">

**Author:** ![nobosh](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/ecb155/32.png) [@nobosh](https://www.ruby-forum.com/u/nobosh)\
**Post date:** [October 2, 2010, 6:54pm UTC](https://www.ruby-forum.com/t/problems-installing-rails-3-on-a-new-machine/195898/3 "2010-10-02T18:54:54Z")

</div>

Try running gem clean up to see if there is a dependeci problem

2010/10/2, nobosh [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid):

> “Ruby on Rails: Talk” group.  
> To post to this group, send email to removed\_email\_address@domain.invalid.  
> To unsubscribe from this group, send email to  
> removed\_email\_address@domain.invalid.  
> For more options, visit this group at  
> [http://groups.google.com/group/rubyonrails-talk?hl=en](http://groups.google.com/group/rubyonrails-talk?hl=en).

–  
Enviado desde mi dispositivo móvil