我试图进行一次交互式Ruby测试，但没有成功。
我下载了zip文件，没有遇到任何问题，并遵循了在终端命令行中，我继续得到以下错误。我我使用"Ruby 1.9.3p392（2013-02-22修订版39386）[x86_64-darwin10.8.0]"。
如果有人能提供任何帮助或建议，请提前感谢。
INSTRUCTIONS:
Install RSpec
gem install rspec
Enter the course directory. (That's the same directory that this
index.html file is in.)
cd learn_ruby
Enter the 00_hello lab.
cd 00_hello
Open a terminal in this directory
cd 00_hello
This directory is the starting point for this exercise. It contains a
spec file and you'll be adding a ruby file to (eventually) make the
specs pass.
Run the test
rake
Watch it fail
You should see an error. Don't get scared! Try to read it and figure out
what the computer wants to tell you. Somewhere on the first line it
should say something like
no such file to load -- test-first-teaching/hello/hello (LoadError)
我没有收到这个错误消息，我收到了下面的消息：
rake aborted!
No Rakefile found (looking for: rakefile, Rakefile, rakefile.rb,
Rakefile.rb)
/usr/local/rvm/gems/ruby-1.9.3-p392/bin/ruby_noexec_wrapper:14:in `eval'
/usr/local/rvm/gems/ruby-1.9.3-p392/bin/ruby_noexec_wrapper:14:in
`<main>'
(See full trace by running task with --trace)
当我运行rake --trace时，我收到：
rake --trace
rake aborted!
No Rakefile found (looking for: rakefile, Rakefile, rakefile.rb,
Rakefile.rb)
/usr/local/rvm/gems/ruby-1.9.3-p392/gems/rake-10.1.0/lib/rake/application.rb:632:in
`raw_load_rakefile'
/usr/local/rvm/gems/ruby-1.9.3-p392/gems/rake-10.1.0/lib/rake/application.rb:94:in
`block in load_rakefile'
/usr/local/rvm/gems/ruby-1.9.3-p392/gems/rake-10.1.0/lib/rake/application.rb:165:in
`standard_exception_handling'
/usr/local/rvm/gems/ruby-1.9.3-p392/gems/rake-10.1.0/lib/rake/application.rb:93:in
`load_rakefile'
/usr/local/rvm/gems/ruby-1.9.3-p392/gems/rake-10.1.0/lib/rake/application.rb:77:in
`block in run'
/usr/local/rvm/gems/ruby-1.9.3-p392/gems/rake-10.1.0/lib/rake/application.rb:165:in
`standard_exception_handling'
/usr/local/rvm/gems/ruby-1.9.3-p392/gems/rake-10.1.0/lib/rake/application.rb:75:in
`run'
/usr/local/rvm/gems/ruby-1.9.3-p392/gems/rake-10.1.0/bin/rake:33:in
`<top (required)>'
/usr/local/rvm/gems/ruby-1.9.3-p392/bin/rake:19:in `load'
/usr/local/rvm/gems/ruby-1.9.3-p392/bin/rake:19:in `<main>'
/usr/local/rvm/gems/ruby-1.9.3-p392/bin/ruby_noexec_wrapper:14:in `eval'
/usr/local/rvm/gems/ruby-1.9.3-p392/bin/ruby_noexec_wrapper:14:in
`<main>'
您必须cd到您的项目目录中，然后才能运行rake路由