我尝试了很多解决方案，但似乎没有任何效果！ 我使用Ruby 1.9.3和Rails 3.1.3，我想安装ruby-debug19 gem。这是我从PowerShell获得的：
PS C:\Users\**\**\**> gem install ruby-debug19
Temporarily enhancing PATH to include DevKit...
Building native extensions. This could take a while...
ERROR: Error installing ruby-debug19:
ERROR: Failed to build gem native extension.
C:/Ruby193/bin/ruby.exe extconf.rb
checking for rb_method_entry_t.body in method.h... no
checking for vm_core.h... no
C:/Ruby193/lib/ruby/gems/1.9.1/gems/ruby_core_source-0.1.5/lib/ruby_core_source.rb:39: Use RbConfig instead of obsolete and deprecated Config.
checking for rb_method_entry_t.body in method.h... no
checking for vm_core.h... yes
checking for iseq.h... yes
checking for insns.inc... yes
checking for insns_info.inc... yes
checking for eval_intern.h... yes
creating Makefile
make
generating ruby_debug-i386-mingw32.def
compiling breakpoint.c
compiling ruby_debug.c
ruby_debug.c:29:19: error: conflicting types for 'rb_iseq_compile_with_option'
C:/Ruby193/include/ruby-1.9.1/ruby-1.9.3-p0/vm_core.h:505:7: note: previous declaration of 'rb_iseq_compile_with_option' was here
ruby_debug.c: In function 'context_jump':
ruby_debug.c:2414:53: warning: comparison between signed and unsigned integer expressions
ruby_debug.c:2428:27: warning: comparison between signed and unsigned integer expressions
make: *** [ruby_debug.o] Error 1
Gem files will remain installed in C:/Ruby193/lib/ruby/gems/1.9.1/gems/ruby-debug-base19-0.11.25 for inspection.
Results logged to C:/Ruby193/lib/ruby/gems/1.9.1/gems/ruby-debug-base19-0.11.25/ext/ruby_debug/gem_make.out
答案 0 :(得分：13)
我遇到了类似的问题，安装了ruby-debug-base19x，并且我已经能够使用以下方法成功安装它：
gem install ruby-debug-base19x -v 0.11.30.pre3
这适用于我的开发机器，它运行窗口7以及pik（参见https://github.com/vertiginous/pik），devkit（参见https://github.com/oneclick/rubyinstaller/wiki/development-kit）和Ruby 1.9.3p0 / 1.9.2p290
以下是安装时应该看到的示例：
C:\>gem install ruby-debug-base19x -v 0.11.30.pre3
Fetching: columnize-0.3.6.gem (100%)
Fetching: archive-tar-minitar-0.5.2.gem (100%)
Fetching: ruby_core_source-0.1.5.gem (100%)
Fetching: linecache19-0.5.12.gem (100%)
Temporarily enhancing PATH to include DevKit...
Building native extensions. This could take a while...
Fetching: ruby-debug-base19x-0.11.30.pre3.gem (100%)
Building native extensions. This could take a while...
Successfully installed columnize-0.3.6
Successfully installed archive-tar-minitar-0.5.2
Successfully installed ruby_core_source-0.1.5
Successfully installed linecache19-0.5.12
Successfully installed ruby-debug-base19x-0.11.30.pre3
5 gems installed
Installing ri documentation for columnize-0.3.6...
Installing ri documentation for archive-tar-minitar-0.5.2...
Installing ri documentation for ruby_core_source-0.1.5...
Installing ri documentation for linecache19-0.5.12...
Installing ri documentation for ruby-debug-base19x-0.11.30.pre3...
Installing RDoc documentation for columnize-0.3.6...
Installing RDoc documentation for archive-tar-minitar-0.5.2...
Installing RDoc documentation for ruby_core_source-0.1.5...
Installing RDoc documentation for linecache19-0.5.12...
Installing RDoc documentation for ruby-debug-base19x-0.11.30.pre3...
虽然这对我有用，但它是一个动人的目标，因为我们正在使用宝石的预发布版本来完成任务。最好留意发布。
另外需要注意的是，在撰写本文时，当前的预发布版本为0.11.30.pre6，但这不起作用，因此只执行以下操作将失败：
gem install ruby-debug-base19x --pre
答案 1 :(得分：2)
在jetbrains网站上提出了类似的问题，其解决方案对我有用： http://devnet.jetbrains.com/message/5443846#5443846
你应该通过
curl -OL http://rubyforge.org/frs/download.php/75414/linecache19-0.5.13.gem
gem install linecache19-0.5.13.gem
然后通过
gem install --pre ruby-debug-base19x
答案 2 :(得分：2)
与Mac OS X rvm ruby 1.9.3-p0和gem install ruby-debug-base19x --pre有类似的问题。
这会安装pre10版本，这似乎可以解决问题。