trying for user authentication for a web app project in .Net
<p>I am trying to build a bank web app as part of our course project, but I get this error regarding user : </p>

<blockquote>
  <p>System.InvalidOperationException: The model backing the
  'ApplicationDbContext' context has changed since the database was
  created</p>
</blockquote>

<p>Consider using Code First <a href="http://go.microsoft.com/fwlink/?LinkId=238269" rel="nofollow">Migrations to update the database</a>. When I try to migrate it gives an error : </p>

<pre><code>The ALTER TABLE statement conflicted with the FOREIGN KEY constraint "FK_dbo.WishLists_dbo.Accounts_AccountId".

 The conflict occurred in database "db_9b1d65373e9b4f0faa8eecf677186e7d",

table "dbo.Accounts", column 'Id'
</code></pre>