问题
I am using W7 64bit. Simply put, when I enter:
C:\Sites>gem install libv8
I get this result:
Temporarily enhancing PATH to include DevKit...
Building native extensions. This could take a while...
ERROR: Error installing libv8:
ERROR: Failed to build gem native extension.
C:/RailsInstaller/Ruby1.9.3/bin/ruby.exe extconf.rb
creating Makefile
which: no gmake in ("my PATH is here, and as far as I know it should include everything I need")
/usr/bin/env: python: No such file or directory
C:\RailsInstaller\DevKit\bin\make.EXE: *** [out/Makefile.ia32] Error 127
Using compiler: C:\RailsInstaller\DevKit\mingw\bin\g++.EXE
GYP_GENERATORS=make \
build/gyp/gyp --generator-output="out" build/all.gyp \
-Ibuild/standalone.gypi --depth=. \
-Dv8_target_arch=ia32 \
-S.ia32 -Dhost_arch=ia32
Gem files will remain installed in C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9
.1/gems/libv8-3.11.8.3 for inspection.
Results logged to C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/libv8-3.1
1.8.3/ext/libv8/gem_make.out
Uninstalling and reinstalling does not work.
I'm trying to install libv8 because it's a dependency for twitter-bootstrap-rails.
EDIT: As I said, I'm on Windows, and I'm realizing now that there's a filepath listed in this error as /usr/bin/env. So that's weird.
回答1:
The solution is to install version .0
gem install libv8 --version 3.11.8.0
until this is fixed, as I experienced this, too
回答2:
I had this problem, and @xiy above led me to the answer. Had to change
gem 'therubyracer'
to
gem 'therubyracer', :platforms => :ruby
as Windows does not need or like that gem.
回答3:
I had the same windows problem that you described with:
gem 'twitter-bootstrap-rails'
When I switched this the version from github:
gem 'twitter-bootstrap-rails', :github => 'seyhunak/twitter-bootstrap-rails'
No problem. Give that a shot.
来源：https://stackoverflow.com/questions/11386580/attempting-to-install-libv8-failed-to-build-gem-native-extension