# cannot install ruby-debug-base

**URL:** <https://discuss.rubyonrails.org/t/cannot-install-ruby-debug-base/56028>\
**Category:** rubyonrails-talk\
**Created:** [December 2, 2010, 12:03am UTC](https://discuss.rubyonrails.org/t/cannot-install-ruby-debug-base/56028 "2010-12-02T00:03:41Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![richigo](https://avatars.discourse-cdn.com/v4/letter/r/49beb7/32.png) [@richigo](https://discuss.rubyonrails.org/u/richigo)\
**Post date:** [December 2, 2010, 12:03am UTC](https://discuss.rubyonrails.org/t/cannot-install-ruby-debug-base/56028/1 "2010-12-02T00:03:41Z")

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excuse me, I want install ruby-debug-base.. but,

# gem install -V ruby-debug-base bla.. bla.. bla.. bla.. /usr/local/lib/ruby/gems/1.9.1/gems/linecache-0.43/test/short-file Building native extensions. This could take a while... ERROR: Error installing ruby-debug-base: &nbsp;&nbsp;&nbsp;ERROR: Failed to build gem native extension.

/usr/local/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: &nbsp;&nbsp;&nbsp;--with-opt-dir &nbsp;&nbsp;&nbsp;--without-opt-dir &nbsp;&nbsp;&nbsp;--with-opt-include &nbsp;&nbsp;&nbsp;--without-opt-include=${opt-dir}/include &nbsp;&nbsp;&nbsp;--with-opt-lib &nbsp;&nbsp;&nbsp;--without-opt-lib=${opt-dir}/lib &nbsp;&nbsp;&nbsp;--with-make-prog &nbsp;&nbsp;&nbsp;--without-make-prog &nbsp;&nbsp;&nbsp;--srcdir=. &nbsp;&nbsp;&nbsp;--curdir &nbsp;&nbsp;&nbsp;--ruby=/usr/local/bin/ruby

Gem files will remain installed in /usr/local/lib/ruby/gems/1.9.1/gems/ linecache-0.43 for inspection. Results logged to /usr/local/lib/ruby/gems/1.9.1/gems/linecache-0.43/ ext/gem\_make.out

what should I do? Thanks in Advance

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<div class="post-metadata">

**Author:** ![Frederick\_Cheung](https://sea2.discourse-cdn.com/rubyonrails/user_avatar/discuss.rubyonrails.org/frederick_cheung/32/3901_2.png) [@Frederick\_Cheung](https://discuss.rubyonrails.org/u/Frederick_Cheung)\
**Post date:** [December 2, 2010, 9:31am UTC](https://discuss.rubyonrails.org/t/cannot-install-ruby-debug-base/56028/2 "2010-12-02T09:31:25Z")

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> excuse me, I want install ruby-debug-base.. but,
> 
> # gem install -V ruby-debug-base bla.. bla.. bla.. bla.. /usr/local/lib/ruby/gems/1.9.1/gems/linecache-0.43/test/short-file Building native extensions. This could take a while... ERROR: Error installing ruby-debug-base: ERROR: Failed to build gem native extension.

[snip]

> Gem files will remain installed in /usr/local/lib/ruby/gems/1.9.1/gems/ linecache-0.43 for inspection. Results logged to /usr/local/lib/ruby/gems/1.9.1/gems/linecache-0.43/ ext/gem\_make.out
> 
> what should I do? Thanks in Advance

ruby 1.9 requires ruby-debug19 instead of ruby-debug

Fred