Using upgrade advisor on a database with compatibility level 80 on SQL Server 2008

Hi All,

My DB compatibility level is 80 which is on SqL server 2008, however I want to upgrade the database server to sql 2014. 

Now in my case the upgrade advisor of SQL 2014 is not detecting the DB which is in 80 compatibility level and hence I cannot proceed with the upgrade (as I do not want to rollback). 

So what exactly  can I do in this situation? any help would be appreciated

aa