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

Question

In Move ASP.NET Identity store to EF Sql database zoidbergi described an issue similar to that which I\'m experiencing, but which was not completely answered. I am receiving

Answer 1

(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.

Answer 2

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"/>