[英]Ruby on Rails: Can't install JSON gem
When I try to create a new Rails application rails new app
, the process stops when trying to install the JSON gem. 当我尝试创建新的Rails应用程序
rails new app
时,尝试安装JSON gem时该过程停止。 So, I tried to install it alone, using: 因此,我尝试使用以下命令单独安装它:
gem install json
but I get the following error message: 但我收到以下错误消息:
Building native extensions. This could take a while...
ERROR: Error installing json:
ERROR: Failed to build gem native extension.
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb
creating Makefile
make
xcrun cc -I. -I/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/universal-darwin11.0 -I/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/universal-darwin11.0 -I. -DJSON_GENERATOR -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -fno-common -arch i386 -arch x86_64 -g -O3 -pipe -fno-common -DENABLE_DTRACE -fno-common -pipe -fno-common -c generator.c
Error: No developer directory found at /Developer. Run /usr/bin/xcode-select to update the developer directory path.
make: *** [generator.o] Error 1
Gem files will remain installed in /Library/Ruby/Gems/1.8/gems/json-1.7.6 for inspection.
Results logged to /Library/Ruby/Gems/1.8/gems/json-1.7.6/ext/json/ext/generator/gem_make.out
Do you have any idea what does this mean? 你知道这是什么意思吗? and how can I fix it?
以及如何解决?
Some additional information: I'm using MacOSX, the Rails version is 3.2.11. 一些其他信息:我正在使用MacOSX,Rails版本是3.2.11。 and the Ruby version is 1.8.7.
Ruby版本是1.8.7。
Thanks for your help. 谢谢你的帮助。
Isn't support for Ruby 1.8.X dropped in Rails? Rails中不支持Ruby 1.8.X吗? I recommend upgrading to 1.9.3.
我建议升级到1.9.3。 For your gem: if there are problems with the native extensions, try using the "`json-pure" gem instead, since it's written entirely in ruby and doesn't need the native extensions.
对于您的gem:如果本机扩展存在问题,请尝试使用“`json-pure” gem,因为它完全是用ruby编写的,不需要本机扩展。
http://rubygems.org/gems/json_pure http://rubygems.org/gems/json_pure
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.