コマンドで新しいレールアプリを作成すると入力したとき:rails new app
json拡張機能をインストールできません
次のメッセージが表示されます。
Installing json (1.8.0)
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension
.
C:/Ruby200-x64/bin/ruby.exe extconf.rb
creating Makefile
make
generating generator-x64-mingw32.def
compiling generator.c
make: x86_64-w64-mingw32-gcc: Command not found
make: *** [generator.o] Error 127
Gem files will remain installed in C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/json-
1.8.0 for inspection.
Results logged to C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/json-1.8.0/ext/json/ex
t/generator/gem_make.out
An error occurred while installing json (1.8.0), and Bundler cannot continue.
Make sure that `gem install json -v '1.8.0'` succeeds before bundling.
この問題の解決策は何ですか????