Rails 上的 NoMethodError 用橡胶硫化答案

【问题标题】：NoMethodError on Rails Vulcanize with RubberRails 上的 NoMethodError 用橡胶硫化
【发布时间】：2013-04-28 23:45:17
【问题描述】：

我对 Rails 很陌生，正在尝试通过橡胶设置我的应用程序。我能够毫无问题地启动一个测试应用程序，但在实际尝试硫化我构建的应用程序时遇到了某种错误。试图搜索高低无济于事。任何人都知道我需要做什么来摆脱这个问题？非常感激。

localhost:thiswins markhayden$ rubber vulcanize complete_passenger_nginx_mysql
/usr/local/rvm/gems/ruby-1.9.3-p392/gems/rubber-2.2.4/lib/rubber/commands/vulcanize.rb:53:in `block in <class:Vulcanize>': undefined method `-' for "complete_passenger_nginx_mysql":String (NoMethodError)
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/clamp-0.6.0/lib/clamp/attribute/declaration.rb:33:in `instance_exec'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/clamp-0.6.0/lib/clamp/attribute/declaration.rb:33:in `block in define_writer_for'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/clamp-0.6.0/lib/clamp/parameter/parsing.rb:13:in `block (2 levels) in parse_parameters'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/clamp-0.6.0/lib/clamp/parameter/parsing.rb:12:in `each'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/clamp-0.6.0/lib/clamp/parameter/parsing.rb:12:in `block in parse_parameters'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/clamp-0.6.0/lib/clamp/parameter/parsing.rb:10:in `each'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/clamp-0.6.0/lib/clamp/parameter/parsing.rb:10:in `parse_parameters'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/clamp-0.6.0/lib/clamp/command.rb:55:in `parse'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/clamp-0.6.0/lib/clamp/command.rb:68:in `run'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/clamp-0.6.0/lib/clamp/subcommand/execution.rb:11:in `execute'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/clamp-0.6.0/lib/clamp/command.rb:69:in `run'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/clamp-0.6.0/lib/clamp/command.rb:127:in `run'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/rubber-2.2.4/bin/rubber:17:in `<top (required)>'
from /usr/local/rvm/gems/ruby-1.9.3-p392/bin/rubber:19:in `load'
from /usr/local/rvm/gems/ruby-1.9.3-p392/bin/rubber:19:in `<main>'
from /usr/local/rvm/gems/ruby-1.9.3-p392/bin/ruby_noexec_wrapper:14:in `eval'
from /usr/local/rvm/gems/ruby-1.9.3-p392/bin/ruby_noexec_wrapper:14:in `<main>'

【问题讨论】：

标签： ruby-on-rails capistrano rubber

【解决方案1】：

我们遇到了同样的问题：

rubber vulcanize complete_passenger_postgresql

这似乎是第 53 行的 Rubber/commands/vulcanize.rb 中的 gem 中的错误，因为它试图从非法字符串中减去一个数组。我将其更改为（作为 sudo）：

invalid = (arg.kind_of?(String) ? [arg] : arg) - VulcanizeThor.valid_templates

这允许设置，但我不确定硫化是否超出预期，因为我也是橡胶新手。这是一个极端的措施，所以请先在非生产环境中尝试小心！

【讨论】：