confirm-milkode-dependency-of-thin

$ ruby -v
  ruby 2.1.2p95 (2014-05-08 revision 45877) [x86_64-linux]
$ ls
  milkode-1.7.2.pre.gem
$ gem uninstall thin
  Remove executables:
          thin

  in addition to the gem? [Yn]  y
  Removing thin
  Successfully uninstalled thin-2.0.0.pre
$ gem list | grep thin
$ gem install -l milkode-1.7.2.pre.gem
  ERROR:  While executing gem ... (Gem::UnsatisfiableDependencyError)
      Unable to resolve dependency: 'milkode (= 1.7.2.pre)' requires 'thin (< 2.0.0.pre, >= 1.2.10)'
$ gem install thin -v 2.0.0.pre --no-document
  Fetching: thin-2.0.0.pre.gem (100%)
  Successfully installed thin-2.0.0.pre
  1 gem installed
$ gem install -l milkode-1.7.2.pre.gem
  ERROR:  While executing gem ... (Gem::UnsatisfiableDependencyError)
      Unable to resolve dependency: 'milkode (= 1.7.2.pre)' requires 'thin (< 2.0.0.pre, >= 1.2.10)'
$ gem uninstall thin
  Remove executables:
          thin

  in addition to the gem? [Yn]  y
  Removing thin
  Successfully uninstalled thin-2.0.0.pre
$ gem install thin -v 1.6.2 --no-document
  Fetching: eventmachine-1.0.3.gem (100%)
  Building native extensions.  This could take a while...
  Successfully installed eventmachine-1.0.3
  Fetching: daemons-1.1.9.gem (100%)
  Successfully installed daemons-1.1.9
  Fetching: thin-1.6.2.gem (100%)
  Building native extensions.  This could take a while...
  Successfully installed thin-1.6.2
  3 gems installed
$ gem install -l milkode-1.7.2.pre.gem
  Successfully installed milkode-1.7.2.pre
  Parsing documentation for milkode-1.7.2.pre
  Installing ri documentation for milkode-1.7.2.pre
  Done installing documentation for milkode after 1 seconds
  1 gem installed