CS0246: The type or namespace name 'ProfileCommon' could not be found

i have a hosting account at godaddy , primary domain is hosted at the root of hosting acount and uses no profile , no database and has web.config as config file...ask4animator.com domain is hosted in a sub-directory which is set as an application root and uses sql and profile properties and has a config file named ask4animator.config.......i have to rename the config file from web.config to ask4animator.config to resolve the server error 500 ..... www.ask4animator.com , check it for detailed error and source
now when i compile the site i get the "CS0246: The type or namespace name 'ProfileCommon' could not be found" error ......why is this error showing up
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