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Gin problem

 
Greenhorn
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Hello everyone: I read a post of David M.Chandler about how to reduce startup time with gwt-presenter here I try the author suggestion of not doing anything on the constructor…however when I try to bound my presenter and its view with gin, gin gives me this error:
java.lang.AssertionError: This UIObject’s element is not set; you may be missing a call to either Composite.initWidget() or UIObject.setElement()… so my doubt is if I didnt set up anything on the view constuctor how can I fix this error???
here is part of my code:

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