About jquery.validatebox.js plugin $ ('# id'). Validate () method can not be used in problem

Use today jquery.validatebox.js plug has prompted $ ('# id'). Validate () is not a function, I have to load the plug-in, and already loaded in advance jquery plugins , are there any great God encounter this problem .
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$ ('# id'). validate () that I only know this plugin can be used jquery.validate.js form validation.
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ah , knowing , and I put something wrong