Home/ Questions/Q 6218105
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-24T07:32:50+00:00

I’m new to Ruby and trying to get it to run, but when I

  • 0

I’m new to Ruby and trying to get it to run, but when I do I get this message:

Could not find gem ‘sqlite3 (>= 0)’ in any of the gem sources listed
in your Gemfile. Run bundle install to install missing gems.

after I run “bundle install” on the terminal (using a Mac) I get the following:

Installing sqlite3 (1.3.4) with native extensions
/Library/Ruby/Site/1.8/rubygems/installer.rb:551: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

How can I fix this? I’ve been Googling for a while but haven’t been able to figure it out, and I need this to successfully run “rails server” to see my app on the browser =/

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    From here:

    Can’t find header files for ruby

    If you get the can’t find header files for ruby error message when
    trying to build an extension or a gem, it means that Ruby cannot
    locate its header files.

    Header files are not delivered by default with Mac OS X, you need to
    install the Xcode Tools package after the installation. You can find
    it in the Optional Installs / Xcode Tools directory on the Leopard
    DVD.

    That’s it, the system doesn’t have the Ruby header files. To install them, you need to install the Xcode Tools package.

    • 0