Deploying Widgets

My Project is consuming 2 widgets (that were not written by me). In my Dev environment the Widgets are found and the widgets work, but when I deploy the Project to Acceptance, the Widgets are not being found. "No constructor found for widget "CodeAttribute.widget.CodeAttribute" How do I force the Widgets to be included in my Deployment Package? Nick Thanks Bas, you are right, it was the Cache (though I am not sure why, maybe the cache holds the Dev version which is pointing at my PC which cannot be seen from the Dev environment.
1 answers

This may not be the best answer, but if you clear your cache in your brower this will probably solve your problem.