ASP.NET/Identity Error: The entity type ApplicationUser is not part of the model for the current context

(INELEGANT?) SOLUTION:

I watched this excellent video https://www.youtube.com/watch?v=elfqejow5hM by Alexander Schmidt and at 33:00 the author reveals that the connection string should not be an EF connection string (using the EF provider) but should be a vanilla MYSQL/SQLServer connection string specifically set up for security, ie:

<add name="IMSSecurityEntities" connectionString="data source=localhost;database=mydb;Uid=id;Pwd=password;" providerName="mysql.data.mysqlclient"/>

and similarly the identity model should be adjusted to:

Public Class ApplicationDbContext    Inherits IdentityDbContext(Of ApplicationUser)    Public Sub New()        MyBase.New("IMSSecurityEntities")    End Sub

This makes me nervous about accessing the security entities through the ORM - but I guess may well be by design so maybe no loss.

In my case it was the providerName property of the connection string. I used a copy of Database First generated connection string which uses System.Data.EntityClient while normal connection strings (to SQL Server) use System.Data.SqlClient. So I changed this

<add name="DefaultConnection" connectionString="..." System.Data.EntityClient"/>

to this

<add name="DefaultConnection" connectionString="..." System.Data.SqlClient"/>