[plt-scheme] Re: An servlet exception difficult to comprehend

I've solved the problem using dispatch/servlet's keyword #:namespace.

On 12月2日, 上午2時59分, ccwu <ccwu660... at gmail.com> wrote:
> Hi,
>
> While refactoring my web server application I encountered the
> following error message:
>
> play.ss:90:111: Servlet (@ /play) exception:
> statement-name: expects args of type <struct:statement>; given
> instance of a different <struct:statement>
>
> The 'statement' is defined as a serializable struct:
>
>  (define-serializable-struct statement (name type description))
>
> What does the above error message want to say?
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