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请帮我在Windows安装水豚宝石。Ruby on Rails - 如何在Windows中安装capybara gem？
>gem install capybara
Temporarily enhancing PATH to include DevKit...
Building native extensions. This could take a while...
ERROR: Error installing capybara:
ERROR: Failed to build gem native extension.
C:/Ruby193/bin/ruby.exe extconf.rb
checking for ffi.h... no
checking for ffi.h in /usr/local/include,/usr/include/ffi... no
checking for rb_thread_blocking_region()... yes
checking for ruby_native_thread_p()... yes
checking for rb_thread_call_with_gvl()... yes
creating extconf.h
creating Makefile
make
generating ffi_c-i386-mingw32.def
Configuring libffi
configure: WARNING: cache variable lt_cv_path_LD contains a newline
configure: WARNING: cache variable lt_cv_path_LD contains a newline
make -C "/c/Ruby193/lib/ruby/gems/1.9.1/gems/ffi-1.1.5/ext/ffi_c/libffi-i386-mingw32"
make[1]: Entering directory `/c/Ruby193/lib/ruby/gems/1.9.1/gems/ffi-1.1.5/ext/ffi_c/libffi-i386-mingw32'
Makefile:318: *** missing separator. Stop.
make[1]: Leaving directory `/c/Ruby193/lib/ruby/gems/1.9.1/gems/ffi-1.1.5/ext/ffi_c/libffi-i386-mingw32'
make: *** ["/c/Ruby193/lib/ruby/gems/1.9.1/gems/ffi-1.1.5/ext/ffi_c/libffi-i386-mingw32"/.libs/libffi_convenience.a] Error 2
Gem files will remain installed in C:/Ruby193/lib/ruby/gems/1.9.1/gems/ffi-1.1.5 for inspection.
Results logged to C:/Ruby193/lib/ruby/gems/1.9.1/gems/ffi-1.1.5/ext/ffi_c/gem_make.out
我已经下载并安装了一些1.7 GB“QT”事情我的同事告知，没有效果。
更新：
>gem install ffi
Temporarily enhancing PATH to include DevKit...
Building native extensions. This could take a while...
ERROR: Error installing ffi:
ERROR: Failed to build gem native extension.
C:/Ruby193/bin/ruby.exe extconf.rb
checking for ffi.h... no
checking for ffi.h in /usr/local/include,/usr/include/ffi... no
checking for rb_thread_blocking_region()... yes
checking for ruby_native_thread_p()... yes
checking for rb_thread_call_with_gvl()... yes
creating extconf.h
creating Makefile
make
generating ffi_c-i386-mingw32.def
Configuring libffi
configure: WARNING: cache variable lt_cv_path_LD contains a newline
configure: WARNING: cache variable lt_cv_path_LD contains a newline
make -C "/c/Ruby193/lib/ruby/gems/1.9.1/gems/ffi-1.1.5/ext/ffi_c/libffi-i386-mingw32"
make[1]: Entering directory `/c/Ruby193/lib/ruby/gems/1.9.1/gems/ffi-1.1.5/ext/ffi_c/libffi-i386-min
gw32'
Makefile:318: *** missing separator. Stop.
make[1]: Leaving directory `/c/Ruby193/lib/ruby/gems/1.9.1/gems/ffi-1.1.5/ext/ffi_c/libffi-i386-ming
w32'
make: *** ["/c/Ruby193/lib/ruby/gems/1.9.1/gems/ffi-1.1.5/ext/ffi_c/libffi-i386-mingw32"/.libs/libff
i_convenience.a] Error 2
Gem files will remain installed in C:/Ruby193/lib/ruby/gems/1.9.1/gems/ffi-1.1.5 for inspection.
Results logged to C:/Ruby193/lib/ruby/gems/1.9.1/gems/ffi-1.1.5/ext/ffi_c/gem_make.out
我已经安装了它。 – Paul
Hrmm。当你尝试安装ffi会发生什么？ 'gem install ffi' – agmcleod
啊哈！它也失败了。我已经更新了这个问题。 – Paul