webdriver gem
下にインストールしようとすると、次のエラーが発生しましたCygwin
:
"gem install selenium-webdriver-2.26.0.gem" :(Rubyを使用してCygwinの下にWebdrivergemをインストールしたいことに注意してください)。
$ gem install selenium-webdriver-2.26.0.gem
Building native extensions. This could take a while...
ERROR: Error installing selenium-webdriver-2.26.0.gem:
ERROR: Failed to build gem native extension.
/usr/bin/ruby.exe extconf.rb checking for ffi.h... *** 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=/usr/bin/ruby
--with-ffi_c-dir
--without-ffi_c-dir
--with-ffi_c-include
--without-ffi_c-include=${ffi_c-dir}/include
--with-ffi_c-lib
--without-ffi_c-lib=${ffi_c-dir}/lib
--with-libffi-config
--without-libffi-config
--with-pkg-config
--without-pkg-config
/usr/lib/ruby/1.9.1/mkmf.rb:381:in `try_do': The compiler failed to generate an executable file.
(RuntimeError) You have to install development tools first.
from /usr/lib/ruby/1.9.1/mkmf.rb:506:in `try_cpp'
from /usr/lib/ruby/1.9.1/mkmf.rb:931:in `block in have_header'
from /usr/lib/ruby/1.9.1/mkmf.rb:790:in `block in checking_for'
from /usr/lib/ruby/1.9.1/mkmf.rb:284:in `block (2 levels) in postpone'
from /usr/lib/ruby/1.9.1/mkmf.rb:254:in `open'
from /usr/lib/ruby/1.9.1/mkmf.rb:284:in `block in postpone'
from /usr/lib/ruby/1.9.1/mkmf.rb:254:in `open'
from /usr/lib/ruby/1.9.1/mkmf.rb:280:in `postpone'
from /usr/lib/ruby/1.9.1/mkmf.rb:789:in `checking_for'
from /usr/lib/ruby/1.9.1/mkmf.rb:930:in `have_header'
from extconf.rb:14:in `<main>'
Gem files will remain installed in
/usr/lib/ruby/gems/1.9.1/gems/ffi-1.2.0 for inspection. Results
logged to
/usr/lib/ruby/gems/1.9.1/gems/ffi-1.2.0/ext/ffi_c/gem_make.out
この問題を解決するために私がしなければならないことを教えてください。どんな助けでも大歓迎です。