我正在尝试将我的应用程序升级到rails 3.1.1。我正在关注railscasts tutorial ，所以我先更新到3.0.9。我在使用 will_paginate 时遇到了一些问题，但在更新到新版本后这些问题得到了解决。现在我所有的测试都通过了，我正在尝试更新到 3.1.1
所以我修改了 Gemfile 以使用 Rails 3.1.1，但是当我进行捆绑更新时，我得到以下输出(其中有一些 ruby 错误，以及有关安装开发的消息)首先是工具)。
编辑:开始认为这与安装 OSX Lion 后没有升级 xcode 有关。会是这样吗？我现在正在下载，但需要一段时间...
MacBoo:myapp oalo$ bundle update
Fetching source index for http://rubygems.org/
Using rake (0.9.2.2)
Using ZenTest (4.6.2)
Using multi_json (1.0.3)
Using activesupport (3.1.1)
Using builder (3.0.0)
Using i18n (0.6.0)
Using activemodel (3.1.1)
Using erubis (2.7.0)
Using rack (1.3.5)
Using rack-cache (1.1)
Using rack-mount (0.8.3)
Using rack-test (0.6.1)
Using hike (1.2.1)
Using tilt (1.3.3)
Using sprockets (2.0.3)
Using actionpack (3.1.1)
Using mime-types (1.17.1)
Using polyglot (0.3.2)
Using treetop (1.4.10)
Using mail (2.3.0)
Using actionmailer (3.1.1)
Using arel (2.2.1)
Using tzinfo (0.3.30)
Using activerecord (3.1.1)
Using activeresource (3.1.1)
Using annotate (2.4.0)
Using autotest (4.4.6)
Installing sys-uname (0.8.6) with native extensions /Users/oalo/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:552:in `rescue in block in build_extensions': ERROR: Failed to build gem native extension. (Gem::Installer::ExtensionBuildError)
/Users/oalo/.rvm/rubies/ruby-1.9.2-p180/bin/ruby extconf.rb
checking for sysctl()... *** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.
Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/Users/oalo/.rvm/rubies/ruby-1.9.2-p180/bin/ruby
/Users/oalo/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/mkmf.rb:368:in `try_do': The complier failed to generate an executable file. (RuntimeError)
You have to install development tools first.
from /Users/oalo/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/mkmf.rb:435:in `try_link0'
from /Users/oalo/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/mkmf.rb:440:in `try_link'
from /Users/oalo/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/mkmf.rb:552:in `try_func'
from /Users/oalo/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/mkmf.rb:797:in `block in have_func'
from /Users/oalo/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/mkmf.rb:693:in `block in checking_for'
from /Users/oalo/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/mkmf.rb:280:in `block (2 levels) in postpone'
from /Users/oalo/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/mkmf.rb:254:in `open'
from /Users/oalo/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/mkmf.rb:280:in `block in postpone'
from /Users/oalo/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/mkmf.rb:254:in `open'
from /Users/oalo/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/mkmf.rb:276:in `postpone'
from /Users/oalo/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/mkmf.rb:692:in `checking_for'
from /Users/oalo/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/mkmf.rb:796:in `have_func'
from extconf.rb:5:in `<main>'
Gem files will remain installed in /Users/oalo/.rvm/gems/ruby-1.9.2-p180/gems/sys-uname-0.8.6 for inspection.
Results logged to /Users/oalo/.rvm/gems/ruby-1.9.2-p180/gems/sys-uname-0.8.6/ext/gem_make.out
from /Users/oalo/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:530:in `block in build_extensions'
from /Users/oalo/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:505:in `each'
from /Users/oalo/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:505:in `build_extensions'
from /Users/oalo/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:180:in `install'
from /Users/oalo/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.15/lib/bundler/source.rb:101:in `block in install'
from /Users/oalo/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.15/lib/bundler/rubygems_integration.rb:78:in `preserve_paths'
from /Users/oalo/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.15/lib/bundler/source.rb:91:in `install'
from /Users/oalo/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.15/lib/bundler/installer.rb:58:in `block (2 levels) in run'
from /Users/oalo/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.15/lib/bundler/rubygems_integration.rb:93:in `with_build_args'
from /Users/oalo/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.15/lib/bundler/installer.rb:57:in `block in run'
from /Users/oalo/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.15/lib/bundler/spec_set.rb:12:in `block in each'
from /Users/oalo/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.15/lib/bundler/spec_set.rb:12:in `each'
from /Users/oalo/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.15/lib/bundler/spec_set.rb:12:in `each'
from /Users/oalo/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.15/lib/bundler/installer.rb:49:in `run'
from /Users/oalo/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.15/lib/bundler/installer.rb:8:in `install'
from /Users/oalo/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.15/lib/bundler/cli.rb:270:in `update'
from /Users/oalo/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.15/lib/bundler/vendor/thor/task.rb:22:in `run'
from /Users/oalo/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.15/lib/bundler/vendor/thor/invocation.rb:118:in `invoke_task'
from /Users/oalo/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.15/lib/bundler/vendor/thor.rb:246:in `dispatch'
from /Users/oalo/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.15/lib/bundler/vendor/thor/base.rb:389:in `start'
from /Users/oalo/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.15/bin/bundle:13:in `<top (required)>'
from /Users/oalo/.rvm/gems/ruby-1.9.2-p180/bin/bundle:19:in `load'
from /Users/oalo/.rvm/gems/ruby-1.9.2-p180/bin/bundle:19:in `<main>'
MacBoo:myapp oalo$
最佳答案
通常更新 rvm 会修复“您必须先安装开发工具”错误:
rvm get latest
rvm reload
rvm --force install 1.9.2
mkmf.log 中有什么内容？
关于ruby-on-rails - 升级到 Rails 3.1.1 时出错，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/7882524/