[PR] Just a little error, but i don't understand why !

Hi everybody, I’ve a little problem with my code! I try to generate html code starting from PIER. When I launch my widget (SPG tool) the nextPutAll method generates an error, but I don't understand why. Can you help me to understand that? Thanks in advance My project name in squeaksource.com : StaticPierGen Sample of my error: MessageNotUnderstood: UndefinedObject>>nextPutAll: Debug Full Stack • UndefinedObject(Object)>>doesNotUnderstand: #nextPutAll: nil temps aMessage nextPutAll: 'Welcome to Pier (formerly called SmallWiki 2), the next generation of a fully extensibl...etc... • WAHtmlStreamDocument>>nextPutAll: a WAHtmlStreamDocument temps aString 'Welcome to Pier (formerly called SmallWiki 2), the next generation of a fully extensible content ma...etc... inst vars stream nil htmlEncoder nil urlEncoder nil