Forum: Ruby Problems with gems and Ruby 1.8.7

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E4784c1fc2a55e68909eb90b5ec6c69b?d=identicon&s=25 Henrique Testa (hique)
on 2009-07-18 15:57
Hi all,

I have ruby 1.8.7 (2008-08-11 patchlevel 72) [universal-darwin10.0]
installed in my Snow Leopard Preview Release. Rails runs OK, but I can't
install some gems with native extensions. The following error appear:

$ sudo gem install bluecloth
Password:
Building native extensions.  This could take a while...
ERROR:  Error installing bluecloth:
  ERROR: Failed to build gem native extension.

/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/bluecloth-2.0.5 for inspection.
Results logged to
/Library/Ruby/Gems/1.8/gems/bluecloth-2.0.5/ext/gem_make.out

The same error happens with many gems. I tried already update rubygem
(the installed version is 1.3.4), but the problem persist. Any ideas?

Thank you!

Henrique
E4784c1fc2a55e68909eb90b5ec6c69b?d=identicon&s=25 Henrique Testa (hique)
on 2009-07-19 05:38
I decided to install another version of ruby at /usr/local/ruby-1.8.6
and point executables (erb, gem, ruby, etc.) to the new ruby dir. All
went right, and ruby (1.8.6) and gem are working. But when I try to
install any gem, I get:

$ sudo gem install rails
Password:
dyld: NSLinkModule() error
dyld: Symbol not found: _ENGINE_load_4758cca
  Referenced from:
/usr/local/lib/ruby/1.8/i686-darwin10.0.0b4/openssl.bundle
  Expected in: flat namespace

Trace/BPT trap

It seems an error unrelated to the one before. Now I can't install any
gem :/
Any hint?

Thank you!
58479f76374a3ba3c69b9804163f39f4?d=identicon&s=25 Eric Hodel (Guest)
on 2009-07-22 04:08
(Received via mailing list)
On Jul 18, 2009, at 06:57, Henrique Testa wrote:
> ERROR:  Error installing bluecloth:
> /Library/Ruby/Gems/1.8/gems/bluecloth-2.0.5 for inspection.
> Results logged to
> /Library/Ruby/Gems/1.8/gems/bluecloth-2.0.5/ext/gem_make.out
>
> The same error happens with many gems. I tried already update rubygem
> (the installed version is 1.3.4), but the problem persist. Any ideas?

You also have the dev tools installed?
Fa922fb19b46fbcf8bb3c19dba6a3bcc?d=identicon&s=25 Henrique Testa (hgtesta)
on 2009-07-22 14:55
Eric Hodel wrote:
> On Jul 18, 2009, at 06:57, Henrique Testa wrote:
>> ERROR:  Error installing bluecloth:
>> /Library/Ruby/Gems/1.8/gems/bluecloth-2.0.5 for inspection.
>> Results logged to
>> /Library/Ruby/Gems/1.8/gems/bluecloth-2.0.5/ext/gem_make.out
>>
>> The same error happens with many gems. I tried already update rubygem
>> (the installed version is 1.3.4), but the problem persist. Any ideas?
>
> You also have the dev tools installed?

Thank you for the response. Yes, I had... but since I didn't find a
solution, I reinstalled Leopard. It is better wait for the final release
of Snow Leopard :/

Henrique
9d75619d3a4f15323d3f74dff767198d?d=identicon&s=25 Ryan Wilson (versapay)
on 2009-07-30 18:46
Henrique Testa wrote:
> Eric Hodel wrote:
>> On Jul 18, 2009, at 06:57, Henrique Testa wrote:
>>> ERROR:  Error installing bluecloth:
>>> /Library/Ruby/Gems/1.8/gems/bluecloth-2.0.5 for inspection.
>>> Results logged to
>>> /Library/Ruby/Gems/1.8/gems/bluecloth-2.0.5/ext/gem_make.out
>>>
>>> The same error happens with many gems. I tried already update rubygem
>>> (the installed version is 1.3.4), but the problem persist. Any ideas?
>>
>> You also have the dev tools installed?
>
> Thank you for the response. Yes, I had... but since I didn't find a
> solution, I reinstalled Leopard. It is better wait for the final release
> of Snow Leopard :/
>
> Henrique


Hi I'm having the same problem, latest copy of xcode, dev tools and snow
leopard but I cant get some of the gems to build. It seems like gem
can't find the header files for Ruby...Any ideas?


Installing ri documentation for diff-lcs-1.1.2...
Installing RDoc documentation for diff-lcs-1.1.2...
Building native extensions.  This could take a while...
ERROR:  Error installing dnssd:
  ERROR: Failed to build gem native extension.

/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/dnssd-0.7.1 for inspection.
Results logged to
/Library/Ruby/Gems/1.8/gems/dnssd-0.7.1/ext/gem_make.out
Successfully installed echoe-3.1.1
Fa922fb19b46fbcf8bb3c19dba6a3bcc?d=identicon&s=25 Henrique Testa (hgtesta)
on 2009-07-30 19:51
> Hi I'm having the same problem, latest copy of xcode, dev tools and snow
> leopard but I cant get some of the gems to build. It seems like gem
> can't find the header files for Ruby...Any ideas?
>
>
> Installing ri documentation for diff-lcs-1.1.2...
> Installing RDoc documentation for diff-lcs-1.1.2...
> Building native extensions.  This could take a while...
> ERROR:  Error installing dnssd:
>   ERROR: Failed to build gem native extension.
>
> /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/dnssd-0.7.1 for inspection.
> Results logged to
> /Library/Ruby/Gems/1.8/gems/dnssd-0.7.1/ext/gem_make.out
> Successfully installed echoe-3.1.1

Well, you can install other Ruby. I followed this tutorial and it worked
great:

http://www.dcmanges.com/blog/install-multiple-vers...

The problem with header files were gone. But the problem with
openssh.bundle I couldn't solve.
58479f76374a3ba3c69b9804163f39f4?d=identicon&s=25 Eric Hodel (Guest)
on 2009-07-31 01:52
(Received via mailing list)
On Jul 30, 2009, at 09:46, Ryan Wilson wrote:
>>>> (the installed version is 1.3.4), but the problem persist. Any
> snow
> /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

If this file really doesn't exist you should submit a bug report to
Apple.
3a7c2dac2901febe70775f71eacdd598?d=identicon&s=25 Elliott Pogue (epogue)
on 2009-08-13 18:17
Installing the Xcode that's bundled with the Snow Leopard developer seed
fixed this problem for me.

Hope this helps.
041cf1f9a7fc3e0a13b46b6142a7f695?d=identicon&s=25 Lasse Bunk (metric)
on 2009-12-30 14:10
Elliott Pogue wrote:
> Installing the Xcode that's bundled with the Snow Leopard developer seed
> fixed this problem for me.
>
> Hope this helps.

Also worked for me :) Thanks.

BR, Lasse
3fc456adc71a170194d0b1b53e312e18?d=identicon&s=25 Robert Lincolne (brownbox)
on 2010-01-11 07:20
Lasse Bunk wrote:
> Elliott Pogue wrote:
>> Installing the Xcode that's bundled with the Snow Leopard developer seed
>> fixed this problem for me.
>>
>> Hope this helps.
>
> Also worked for me :) Thanks.
>
> BR, Lasse

Had the same problem, re-installed XCode with the Snow Leopard DVD we
had here fixed it.
92549081cd15c36da87758c65d8ed787?d=identicon&s=25 Jeff Burrows (jazzhermit)
on 2010-12-20 03:49
Just wanted to confirm that I had to do this same installation of xcode
with a Macbook Pro purchased in December 2010.
E86f7a39047d35285b8bf652073a4a7a?d=identicon&s=25 Michael L. (michael_l)
on 2011-02-17 17:59
And the beat goes on...

I just had to do the same thing for a new MacBook Pro purchased
just a couple weeks ago. Good news is, this still works. Bad news is,
it's takes 9GB if you go whole hog and install xcode+iOS tools.
Ef93824de078bbf40f2a9240f37c965e?d=identicon&s=25 Tadas (tadas_)
on 2011-04-21 11:58
Michael L. wrote in post #982264:
> Bad news is, it's takes 9GB if you go whole hog and install xcode+iOS tools.

You don't actually need the iOS tools which take up most of that space.
B4b6a08f3cffe728eb3577138f06e77f?d=identicon&s=25 Rob R. (rob_r52)
on 2012-03-05 01:26
Hi All,
I'm having the same problem when executing

$> sudo gem install rails

I get the error:

ERROR: Error installing rails: ERROR: Failed to build
gem native extension.

/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

I'm running 10.7.3 on a MacBook Air (11-inch Mid 2011 i5 CPU)

I have installed XCode v4.3 (latest) from the App Store (This computer
has no DVD drive)

I know that the ruby.h file does exist because I find it with the locate
command. It exists several places, like this:
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.6.sdk/System/Library/Frameworks/Ruby.framework/Versions/1.8/Headers/ruby.h

Perhaps my gcc environment variables need to be updated?

Any advice is greatly appreciated.
Thanks,
Rob
Bac29a5252909ef6f08296a65589792c?d=identicon&s=25 Chad Peterson (cpeterson)
on 2012-03-07 21:32
Rob R. wrote in post #1050146:
> Hi All,
> I'm having the same problem when executing
>
> $> sudo gem install rails
>
> I get the error:
>
> ERROR: Error installing rails: ERROR: Failed to build
> gem native extension.
>
> /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
>
> I'm running 10.7.3 on a MacBook Air (11-inch Mid 2011 i5 CPU)
>
> I have installed XCode v4.3 (latest) from the App Store (This computer
> has no DVD drive)
>
> I know that the ruby.h file does exist because I find it with the locate
> command. It exists several places, like this:
>
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.6.sdk/System/Library/Frameworks/Ruby.framework/Versions/1.8/Headers/ruby.h
>
> Perhaps my gcc environment variables need to be updated?
>
> Any advice is greatly appreciated.
> Thanks,
> Rob

I had this particular problem as well and here's how I got around it:
For OS 10.7 + XCode4.3 only open Xcode preferences, select the
"Downloads" button, select the "Components" tab of Downloads, highlight
"Command Line Tools" and press the install button.  Gem install rails
didn't give me any trouble after that.  Hope that works for you too,

Chad
C1e0b54f5d576f945635b7fec12979fb?d=identicon&s=25 Nestor Waldyd (waldyd)
on 2012-03-13 07:29
Hello...

yum install ruby-devel

solved it for me when installing rails

[waldyd@waldyd Homework 2]$ sudo gem install rails -V
GET http://rubygems.org/latest_specs.4.8.gz
302 Found
GET http://production.s3.rubygems.org/latest_specs.4.8.gz
304 Not Modified
GET http://rubygems.org/specs.4.8.gz
connection reset after 2 requests, retrying
GET http://rubygems.org/specs.4.8.gz
302 Found
GET http://production.s3.rubygems.org/specs.4.8.gz
200 OK
Installing gem json-1.6.5
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/.gitignore
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/.travis.yml
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/CHANGES
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/COPYING
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/COPYING-json-jruby
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/GPL
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/Gemfile
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/README-json-jruby.markdown
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/README.rdoc
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/Rakefile
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/TODO
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/VERSION
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/data-p4-3GHz-ruby18/.keep
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/data-p4-3GHz-ruby18/GeneratorBenchmarkComparison.log
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/data-p4-3GHz-ruby18/GeneratorBenchmarkExt#generator_fast-autocorrelation.dat
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/data-p4-3GHz-ruby18/GeneratorBenchmarkExt#generator_fast.dat
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/data-p4-3GHz-ruby18/GeneratorBenchmarkExt#generator_pretty-autocorrelation.dat
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/data-p4-3GHz-ruby18/GeneratorBenchmarkExt#generator_pretty.dat
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/data-p4-3GHz-ruby18/GeneratorBenchmarkExt#generator_safe-autocorrelation.dat
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/data-p4-3GHz-ruby18/GeneratorBenchmarkExt#generator_safe.dat
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/data-p4-3GHz-ruby18/GeneratorBenchmarkExt.log
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/data-p4-3GHz-ruby18/GeneratorBenchmarkPure#generator_fast-autocorrelation.dat
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/data-p4-3GHz-ruby18/GeneratorBenchmarkPure#generator_fast.dat
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/data-p4-3GHz-ruby18/GeneratorBenchmarkPure#generator_pretty-autocorrelation.dat
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/data-p4-3GHz-ruby18/GeneratorBenchmarkPure#generator_pretty.dat
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/data-p4-3GHz-ruby18/GeneratorBenchmarkPure#generator_safe-autocorrelation.dat
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/data-p4-3GHz-ruby18/GeneratorBenchmarkPure#generator_safe.dat
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/data-p4-3GHz-ruby18/GeneratorBenchmarkPure.log
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/data-p4-3GHz-ruby18/GeneratorBenchmarkRails#generator-autocorrelation.dat
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/data-p4-3GHz-ruby18/GeneratorBenchmarkRails#generator.dat
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/data-p4-3GHz-ruby18/GeneratorBenchmarkRails.log
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/data-p4-3GHz-ruby18/ParserBenchmarkComparison.log
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/data-p4-3GHz-ruby18/ParserBenchmarkExt#parser-autocorrelation.dat
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/data-p4-3GHz-ruby18/ParserBenchmarkExt#parser.dat
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/data-p4-3GHz-ruby18/ParserBenchmarkExt.log
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/data-p4-3GHz-ruby18/ParserBenchmarkPure#parser-autocorrelation.dat
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/data-p4-3GHz-ruby18/ParserBenchmarkPure#parser.dat
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/data-p4-3GHz-ruby18/ParserBenchmarkPure.log
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/data-p4-3GHz-ruby18/ParserBenchmarkRails#parser-autocorrelation.dat
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/data-p4-3GHz-ruby18/ParserBenchmarkRails#parser.dat
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/data-p4-3GHz-ruby18/ParserBenchmarkRails.log
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/data-p4-3GHz-ruby18/ParserBenchmarkYAML#parser-autocorrelation.dat
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/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/data-p4-3GHz-ruby18/ParserBenchmarkYAML.log
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/data/.keep
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/generator2_benchmark.rb
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/generator_benchmark.rb
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/ohai.json
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/usr/lib/ruby/gems/1.8/gems/json-1.6.5/benchmarks/parser2_benchmark.rb
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/usr/lib/ruby/gems/1.8/gems/json-1.6.5/lib/json/add/struct.rb
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/lib/json/add/symbol.rb
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/lib/json/add/time.rb
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/usr/lib/ruby/gems/1.8/gems/json-1.6.5/lib/json/ext/.keep
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/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/fixtures/fail1.json
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/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/fixtures/fail11.json
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/fixtures/fail12.json
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/fixtures/fail13.json
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/fixtures/fail14.json
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/fixtures/fail18.json
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/fixtures/fail19.json
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/fixtures/fail2.json
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/fixtures/fail20.json
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/fixtures/fail21.json
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/fixtures/fail22.json
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/fixtures/fail23.json
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/fixtures/fail24.json
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/fixtures/fail25.json
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/fixtures/fail27.json
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/fixtures/fail28.json
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/fixtures/fail3.json
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/fixtures/fail4.json
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/fixtures/fail5.json
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/fixtures/fail6.json
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/fixtures/fail7.json
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/fixtures/fail8.json
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/fixtures/fail9.json
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/fixtures/pass1.json
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/fixtures/pass15.json
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/fixtures/pass16.json
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/fixtures/pass17.json
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/fixtures/pass2.json
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/fixtures/pass26.json
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/fixtures/pass3.json
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/setup_variant.rb
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/test_json.rb
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/test_json_addition.rb
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/test_json_encoding.rb
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/test_json_fixtures.rb
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/test_json_generate.rb
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/test_json_string_matching.rb
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/test_json_unicode.rb
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tools/fuzz.rb
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tools/server.rb
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/test_json_string_matching.rb
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/test_json_fixtures.rb
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/test_json_unicode.rb
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/test_json_addition.rb
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/test_json_generate.rb
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/test_json_encoding.rb
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/tests/test_json.rb
Building native extensions.  This could take a while...
/usr/bin/ruby extconf.rb
mkmf.rb can't find header files for ruby at /usr/lib/ruby/ruby.h
ERROR:  Error installing rails:
  ERROR: Failed to build gem native extension.

        /usr/bin/ruby extconf.rb
mkmf.rb can't find header files for ruby at /usr/lib/ruby/ruby.h


Gem files will remain installed in
/usr/lib/ruby/gems/1.8/gems/json-1.6.5 for inspection.
Results logged to
/usr/lib/ruby/gems/1.8/gems/json-1.6.5/ext/json/ext/parser/gem_make.out


Best Regards,

Nestor Waldyd
6371b658db2cf65ef4dd0fffe10b7e4b?d=identicon&s=25 Edwin Nrgh (nrgh)
on 2012-04-07 05:06
Chad Peterson wrote in post #1050618:
> I had this particular problem as well and here's how I got around it:
> For OS 10.7 + XCode4.3 only open Xcode preferences, select the
> "Downloads" button, select the "Components" tab of Downloads, highlight
> "Command Line Tools" and press the install button.  Gem install rails
> didn't give me any trouble after that.  Hope that works for you too,
>
> Chad

This worked great. Thanks.
90e8484833986e6d2abbdaf884f1b783?d=identicon&s=25 to dgru (todgru)
on 2012-05-17 06:11
> I had this particular problem as well and here's how I got around it:
> For OS 10.7 + XCode4.3 only open Xcode preferences, select the
> "Downloads" button, select the "Components" tab of Downloads, highlight
> "Command Line Tools" and press the install button.  Gem install rails
> didn't give me any trouble after that.  Hope that works for you too,
>
> Chad

This worked for me using OS 10.7.4 + Xcode 4.3.2.

todgru
008056d324f6f3132fa5bc6b5458271d?d=identicon&s=25 mark wiltshire (markemark)
on 2012-07-17 18:39
> I had this particular problem as well and here's how I got around it:
> For OS 10.7 + XCode4.3 only open Xcode preferences, select the
> "Downloads" button, select the "Components" tab of Downloads, highlight
> "Command Line Tools" and press the install button.  Gem install rails
> didn't give me any trouble after that.  Hope that works for you too,
>
> Chad

This worked for me too Mac OS X 10.7.4 Xcode 4.3.3

Thanks

Mark
D2272392e73d6c9430b585b23eb47986?d=identicon&s=25 Ruby Sea (rubina)
on 2012-07-28 09:32
Posted by mark wiltshire (markemark) on 2012-07-17 18:39
> I had this particular problem as well and here's how I got around it:
> For OS 10.7 + XCode4.3 only open Xcode preferences, select the
> "Downloads" button, select the "Components" tab of Downloads, highlight
> "Command Line Tools" and press the install button.  Gem install rails
> didn't give me any trouble after that.  Hope that works for you too,


It did work for me thank you so much :)
8dccb6df0d87e7cd14f55547120d4e32?d=identicon&s=25 Zach Magaw (zmagaw)
on 2012-08-01 05:00
Ruby Sea wrote in post #1070503:
> Posted by mark wiltshire (markemark) on 2012-07-17 18:39
>> I had this particular problem as well and here's how I got around it:
>> For OS 10.7 + XCode4.3 only open Xcode preferences, select the
>> "Downloads" button, select the "Components" tab of Downloads, highlight
>> "Command Line Tools" and press the install button.  Gem install rails
>> didn't give me any trouble after that.  Hope that works for you too,
>
>
> It did work for me thank you so much :)

Seems to work with OS 10.8 and XCode 4.4 as well - same problem
encountered - same solution - thanks so much for the help
864a1f2cf8123415f976df8ef5d6a297?d=identicon&s=25 ismail sefa (maskapsiz)
on 2012-08-22 01:38
> I had this particular problem as well and here's how I got around it:
> For OS 10.7 + XCode4.3 only open Xcode preferences, select the
> "Downloads" button, select the "Components" tab of Downloads, highlight
> "Command Line Tools" and press the install button.  Gem install rails
> didn't give me any trouble after that.  Hope that works for you too,
>
> Chad

This WORKED! Thank you..
4aec984c208f5da240a4cbb59c92a09b?d=identicon&s=25 Kathy M. (kathy_m)
on 2012-10-01 18:15
> I had this particular problem as well and here's how I got around it:
> For OS 10.7 + XCode4.3 only open Xcode preferences, select the
> "Downloads" button, select the "Components" tab of Downloads, highlight
> "Command Line Tools" and press the install button.  Gem install rails
> didn't give me any trouble after that.  Hope that works for you too,
>
> Chad

This worked for me as well.  Thank you!
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