title: Updating Database model (.edmx) Model First
body: <p>I am having a few problems with updating the model in EF using Model First.</p>
  
  <p>I have exhausted my efforts with the suggestions of adding migrations (which is normally done using Code First). </p>
  
  <p>The Package Manager Console prints the message</p>
  
  <p><strong>Creating a DbModelBuilder or writing the EDMX from a DbContext created using Database First or Model First is not supported. EDMX can only be obtained from a Code First DbContext created without using an existing DbCompiledModel.</strong></p>
  
  <p>I have also tried this suggestion</p>
  
  <p><a href="https://stackoverflow.com/questions/10951040/updating-model-in-ef-database-first-project">Updating model in EF Database First project</a></p>
  
  <p>However nothing happens when i click "Run Custom Tool"</p>
  
  <p>Any suggestions please on how to update the model to reflect the changes that have been added to the database.</p>