[英]ERROR: Error installing rails: ERROR: Failed to build gem native extension
I was getting some json errors on my rails app (it was on a pretty old version) at one point, some mysql errors at others, so I reinstalled everything to the latest versions with rvm.我的 rails 应用程序有一次出现了一些 json 错误(它是一个非常旧的版本),在其他时候出现了一些 mysql 错误,所以我用 rvm 将所有内容重新安装到最新版本。 A lot of the stuff I'm googling says an older version of xcode, but when I run
xcodebuild -version
I get:我在谷歌上搜索的很多东西都说是旧版本的 xcode,但是当我运行
xcodebuild -version
我得到:
Xcode 4.5.2
Build version 4G2008a
Here's the full error on gem install rails:这是 gem install rails 上的完整错误:
jakes-MacBook-Pro:~ mctesterson$ sudo gem install rails
Fetching: i18n-0.6.1.gem (100%)
Fetching: multi_json-1.4.0.gem (100%)
Fetching: activesupport-3.2.9.gem (100%)
Fetching: builder-3.0.4.gem (100%)
Fetching: activemodel-3.2.9.gem (100%)
Fetching: rack-1.4.1.gem (100%)
Fetching: rack-cache-1.2.gem (100%)
Fetching: rack-test-0.6.2.gem (100%)
Fetching: journey-1.0.4.gem (100%)
Fetching: hike-1.2.1.gem (100%)
Fetching: tilt-1.3.3.gem (100%)
Fetching: sprockets-2.2.2.gem (100%)
Fetching: erubis-2.7.0.gem (100%)
Fetching: actionpack-3.2.9.gem (100%)
Fetching: arel-3.0.2.gem (100%)
Fetching: tzinfo-0.3.35.gem (100%)
Fetching: activerecord-3.2.9.gem (100%)
Fetching: activeresource-3.2.9.gem (100%)
Fetching: mime-types-1.19.gem (100%)
Fetching: polyglot-0.3.3.gem (100%)
Fetching: treetop-1.4.12.gem (100%)
Fetching: mail-2.4.4.gem (100%)
Fetching: actionmailer-3.2.9.gem (100%)
Fetching: rake-10.0.2.gem (100%)
Fetching: rack-ssl-1.3.2.gem (100%)
Fetching: thor-0.16.0.gem (100%)
Fetching: json-1.7.5.gem (100%)
Building native extensions. This could take a while...
ERROR: Error installing rails:
ERROR: Failed to build gem native extension.
/Users/mctesterson/.rvm/rubies/ruby-1.9.3-p327/bin/ruby extconf.rb
creating Makefile
make
compiling generator.c
make: /usr/bin/gcc-4.2: No such file or directory
make: *** [generator.o] Error 1
Gem files will remain installed in /Users/mctesterson/.rvm/rubies/ruby-1.9.3-p327/lib/ruby/gems/1.9.1/gems/json-1.7.5 for inspection.
Results logged to /Users/mctesterson/.rvm/rubies/ruby-1.9.3-p327/lib/ruby/gems/1.9.1/gems/json-1.7.5/ext/json/ext/generator/gem_make.out
It looks like it was looking for my gcc stuff in the wrong place.看起来它在错误的地方寻找我的 gcc 东西。
I ran the following and it worked:我运行了以下命令并且它起作用了:
sudo ln -s /usr/local/bin/gcc-4.2 /usr/bin/gcc-4.2
(looked at this article and found that under Franco's solution: error: failed to build gem native extension when installing rails on mac mountian lion os ) (看了这篇文章,发现在Franco的解决方案下: error: failed to build gem native extension when installed rails on mac mountian lion os )
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