MacRuby xcode label not working

class HelloApp
        attr_accessor :label, :text_field, :button
        def clickedButton(sender)
            # implementation
            your_name = self.text_field.stringValue
            self.label.stringValue = "Hello,  #{your_name}"
        end
end

上面的代码在HelloApp.rb中问题是当我在文本框中输入内容时，点击按钮，标签只是说“你好”，而不是“Hello，namegoeshere”顺便说一句，我使用的是MacRuby。

---

Your code works for me in MacRuby .5

Does this log the user input to the console?

your_name = self.text_field.stringValue
puts "Your name is #{your_name}" 

If not, you may not have the text_field hooked up to the NSTextField in Interface Builder.

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