无法安装Rails

Question

我正在尝试在OS X Lion上安装Rails并获取以下消息。 我已经安装了Ruby，并且也更新到rubyGems版本1.8.5。

Building native extensions.  This could take a while...
ERROR:  Error installing rails:
ERROR: Failed to build gem native extension.

/opt/local/bin/ruby extconf.rb
creating Makefile
make
/usr/bin/gcc-4.2 -I. -I/opt/local/lib/ruby/1.8/i686-darwin10 -I/opt/local/lib/ruby/1.8/i686-darwin10 -I. -I/opt/local/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE   -fno-common -O2 -arch x86_64  -fno-common -pipe -fno-common  -O3 -Wall -arch x86_64 -c parser.c
make: /usr/bin/gcc-4.2: No such file or directory
make: *** [parser.o] Error 1

Gem files will remain installed in /opt/local/lib/ruby/gems/1.8/gems/json-1.7.0 for inspection.
Results logged to /opt/local/lib/ruby/gems/1.8/gems/json-1.7.0/ext/json/ext/parser/gem_make.out

Answer 1

您的gcc似乎丢失了。 似乎在Lion中发生。 尝试重新安装XCode和命令行工具，或通过Homebrew安装一个