title: There is already an object named 'AspNetRoles' in the database
body: <p>Some time ago, I created a ASP.NET MVC 5 website with the Identity 1.0 version, and i created the Identity tables with this project. Now i have to make other website using the same database for authentication, but now the Identity version is 2.0. 
  So when i try to authenticate in the new website i get some errors.</p>
  
  <p>Im trying to migrate the database using the Migrations approach, but its confused and im getting this error <code>There is already an object named 'AspNetRoles' in the database.</code>  when i type Update-Database in the PM console.</p>
  
  <p>My question is, how is the best way to use the same database for the authetication of both sites (one using the 1.0 identity version and other using 2.0). Do I really need to migrate the database?</p>
  
  <p>If yes, how can i solve this error that im getting?</p>