ruby-on-rails - 尝试创建新的 Rails 应用程序时出现 Thor 参数错误

Question

我正在尝试使用 rails-api 创建一个新的应用程序。当我运行 rails-api new mynewapp 时，我得到以下信息:

/Users/sandy/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/thor-0.19.1.1/lib/thor/parser/option.rb:125:in `validate_default_type!': An option's default must match its type. (ArgumentError)
from /Users/sandy/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/thor-0.19.1.1/lib/thor/parser/option.rb:111:in `validate!'
from /Users/sandy/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/thor-0.19.1.1/lib/thor/parser/argument.rb:24:in `initialize'
from /Users/sandy/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/thor-0.19.1.1/lib/thor/parser/option.rb:9:in `initialize'
from /Users/sandy/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/thor-0.19.1.1/lib/thor/base.rb:544:in `new'
from /Users/sandy/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/thor-0.19.1.1/lib/thor/base.rb:544:in `build_option'
from /Users/sandy/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/thor-0.19.1.1/lib/thor/base.rb:274:in `class_option'
from /Users/sandy/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.4/lib/rails/generators/base.rb:202:in `class_option'
from /Users/sandy/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.4/lib/rails/generators/app_base.rb:71:in `add_shared_options_for'
from /Users/sandy/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.4/lib/rails/generators/rails/app/app_generator.rb:160:in `<class:AppGenerator>'
from /Users/sandy/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.4/lib/rails/generators/rails/app/app_generator.rb:159:in `<module:Generators>'
from /Users/sandy/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.4/lib/rails/generators/rails/app/app_generator.rb:153:in `<module:Rails>'
from /Users/sandy/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.4/lib/rails/generators/rails/app/app_generator.rb:3:in `<top (required)>'
from /Users/sandy/.rbenv/versions/2.2.2/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:69:in `require'
from /Users/sandy/.rbenv/versions/2.2.2/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:69:in `require'
from /Users/sandy/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/rails-api-0.4.0/lib/rails-api/generators/rails/app/app_generator.rb:2:in `<top (required)>'
from /Users/sandy/.rbenv/versions/2.2.2/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:69:in `require'
from /Users/sandy/.rbenv/versions/2.2.2/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:69:in `require'
from /Users/sandy/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/rails-api-0.4.0/bin/rails-api:3:in `<top (required)>'
from /Users/sandy/.rbenv/versions/2.2.2/bin/rails-api:23:in `load'
from /Users/sandy/.rbenv/versions/2.2.2/bin/rails-api:23:in `<main>'

我在尝试 rails new mynewapp 时得到完全相同的错误，除了而不是

...gems/rails-api-0.4.0/bin/rails-api:3:in `<top (required)>'

我明白了

...gems/railties-4.2.4/bin/rails:9:in `<top (required)>'

甚至运行 rails -v 也会出现同样的错误。

Google 没有帮助。有谁知道是什么原因造成的？

Answer 1

如果您运行 rails -v 并遇到错误，则您的安装可能有问题。我会尝试重新安装 rails...

按照这个: http://installrails.com/