# Bundler issue

**URL:** <https://www.ruby-forum.com/t/bundler-issue/193378>\
**Category:** Rails\
**Created:** [August 16, 2010, 8:58pm UTC](https://www.ruby-forum.com/t/bundler-issue/193378 "2010-08-16T20:58:43Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![devrubygem](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/ac8455/32.png) [@devrubygem](https://www.ruby-forum.com/u/devrubygem)\
**Post date:** [August 16, 2010, 8:58pm UTC](https://www.ruby-forum.com/t/bundler-issue/193378/1 "2010-08-16T20:58:43Z")

</div>

Hello,  
When I run bundle install I get the following error message below. Can  
someone please give me some assistance. Thanks

ERROR: Failed to build gem native extension.  
(Gem::Installer::ExtensionBuildError)

/Users/musdev/.rvm/rubies/ruby-1.9.1-p378/bin/ruby extconf.rb  
Can’t handle 1.9.x yet  
\*\*\* extconf.rb failed \*\*\*  
Could not create Makefile due to some reason, probably lack of  
necessary libraries and/or headers. Check the mkmf.log file for more  
details. You may need configuration options.

Provided configuration options:  
–with-opt-dir  
–without-opt-dir  
–with-opt-include  
–without-opt-include=${opt-dir}/include  
–with-opt-lib  
–without-opt-lib=${opt-dir}/lib  
–with-make-prog  
–without-make-prog  
–srcdir=.  
–curdir  
–ruby=/Users/musdev/.rvm/rubies/ruby-1.9.1-p378/bin/ruby

Gem files will remain installed in  
/Users/musdev/.rvm/gems/ruby-1.9.1-p378/gems/linecache-0.43 for  
inspection.  
Results logged to  
/Users/musdev/.rvm/gems/ruby-1.9.1-p378/gems/linecache-0.43/ext/gem\_make.out