Rails:找不到铁路

Question

?  ~  rvm -v

rvm 1.10.2 by Wayne E. Seguin <wayneeseguin@gmail.com>, Michal Papis <mpapis@gmail.com> [https://rvm.beginrescueend.com/]

?  ~  ruby -v
ruby 1.9.3p0 (2011-10-30 revision 33570) [x86_64-darwin11.2.0]
?  ~  rails -v
/Users/hb/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/site_ruby/1.9.1/rubygems/dependency.rb:247:in `to_specs': Could not find railties (>= 0) amongst [bigdecimal-1.1.0, io-console-0.3, json-1.5.4, minitest-2.5.1, rake-0.9.2.2, rdoc-3.9.4] (Gem::LoadError)
    from /Users/hb/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/site_ruby/1.9.1/rubygems/dependency.rb:256:in `to_spec'
    from /Users/hb/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/site_ruby/1.9.1/rubygems.rb:1208:in `gem'
    from /Users/hb/.rvm/gems/ruby-1.9.3-p0/bin/rails:18:in `<main>'
?  ~  

我刚刚安装了一个干净的ruby安装和rails,我删除了以前所有的宝石,但我仍然遇到这个错误.有任何想法吗 ？是的,之前我有过这个错误,这就是我所做的

更多信息:

?  ~  gem list

*** LOCAL GEMS ***

actionmailer (3.2.1)
actionpack (3.2.1)
activemodel (3.2.1)
activerecord (3.2.1)
activeresource (3.2.1)
activesupport (3.2.1)
arel (3.0.0)
builder (3.0.0)
bundler (1.0.22 ruby)
erubis (2.7.0)
hike (1.2.1)
i18n (0.6.0)
journey (1.0.1)
json (1.6.5)
mail (2.4.1)
mime-types (1.17.2)
multi_json (1.0.4)
polyglot (0.3.3)
rack (1.4.1)
rack-cache (1.1)
rack-ssl (1.3.2)
rack-test (0.6.1)
rails (3.2.1)
railties (3.2.1)
rake (0.9.2.2, 0.9.2)
rdoc (3.12)
sprockets (2.3.0, 2.1.2)
thor (0.14.6)
tilt (1.3.3)
treetop (1.4.10)
tzinfo (0.3.31)

?  ~  gem install rails
Successfully installed rails-3.2.1
1 gem installed
Installing ri documentation for rails-3.2.1...
Installing RDoc documentation for rails-3.2.1...
?  ~  rails -v
/Users/hb/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/site_ruby/1.9.1/rubygems/dependency.rb:247:in `to_specs': Could not find railties (>= 0) amongst [bigdecimal-1.1.0, io-console-0.3, json-1.5.4, minitest-2.5.1, rake-0.9.2.2, rdoc-3.9.4] (Gem::LoadError)
    from /Users/hb/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/site_ruby/1.9.1/rubygems/dependency.rb:256:in `to_spec'
    from /Users/hb/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/site_ruby/1.9.1/rubygems.rb:1208:in `gem'
    from /Users/hb/.rvm/gems/ruby-1.9.3-p0/bin/rails:18:in `<main>'
?  ~  

Answer 1

这意味着您的Rails安装已损坏或不完整.如果你列出你的宝石,你很可能找不到railties

$ gem list

运行命令

$ gem install rails

再次.它将下载并安装缺少的依赖项,包括railties.

Answer 2

我遇到了同样的问题,在我的情况下,原来是因为我安装了sudo - 它并不一定让普通用户可以使用rails.gem install rails如果您以前跑过,请尝试运行sudo gem install rails.

Answer 3

为我工作

rvm reinstall 1.9.3

然后

gem install rails

Answer 4

我遇到了同样的问题.如果您正在使用RVM,则可能会切换到错误的Ruby版本,如果该目录使用的版本与您当前设置的版本不同,则会导致gem加载错误.

要修复,请在终端的应用程序目录中键入rvm use -yourrubyversion.例如,如果您的应用程序设置为使用ruby 1.9.3类型rvm使用-1.9.3.

RVM通过应用程序按ruby版本分隔你的宝石,所以如果你切换到不同的ruby版本,RVM会将以前使用和安装的gem与不同的ruby版本分开,这就是为什么你可能会看到这个问题.

Answer 5

rvm implode是答案.之前可能出现了问题,现在一切都在rvm重新安装后工作.

Answer 6

也许你安装了两个或更多版本的铁轨和铁路.

gem uninstall railties
gem uninstall rails

然后重新安装.

Answer 7

我安装ruby 1.9.3p194时遇到了同样的错误

然后我重新安装了红宝石和铁轨