Entity Framework June 2011 CTP Bug

I recently installed the Entity Framework June 2011 CTP to preview the enum support but ran into a bug along the way that reported an error while processing the template.
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I encountered this error while trying to run an Entity based project using the "Database & Model First" paradigm. Uninstalling the preview removed the problem. Not sure why this error occured since the preview doesn't modify the assembly it is complaining about not finding an entry point in.