class Gem::MissingSpecError

当尝试激活一个 gem，但系统中不存在该 gem 时引发。不要从这个类中捕获异常，请确保从超类 Gem::LoadError 中捕获，以捕获所有类型的加载错误。

Public Class Methods

new (name, requirement, extra_message = nil)

Source

# File lib/rubygems/errors.rb, line 29
def initialize(name, requirement, extra_message = nil)
  @name        = name
  @requirement = requirement
  @extra_message = extra_message
  super(message)
end

调用超类方法 Exception::new

私有实例方法

build_message ()

Source

# File lib/rubygems/errors.rb, line 43
def build_message
  total = Gem::Specification.stubs.size
  "Could not find '#{name}' (#{requirement}) among #{total} total gem(s)\n"
end