An error occurred accessing the database

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VB

ASP

MySQL

MVC5

Projcet in MVC & VB.net

This is the full error message:

System.Data.Entity.Core.ProviderIncompatibleException: 'An error occurred accessing the database. This usually means that the connection to the database failed. Check that the connection string is correct and that the appropriate DbContext constructor is being used to specify it or find it in the application's config file. See http://go.microsoft.com/fwlink/?LinkId=386386 for information on DbContext and connections. See the inner exception for details of the failure.'

I tried since yesterday to solve it without any result!

Here is the connectionStrings:

<connectionStrings>
  <add name="PioneerDBContext"
       connectionString=" Server=localhost; Port=3306; DataBase=MYDB; username=root; password=;"
       providerName="MySql.Data.MySqlClient" />
  </connectionStrings>

and here is the Context class:

Imports System.Data.Entity
Imports System.Collections.Generic


Public Class PioneerDBContext
    Inherits DbContext


    Public Property Projects As DbSet(Of Project)
    Public Property Items As DbSet(Of Item)
    Public Property Suppliers As DbSet(Of Supplier)
    Public Property POs As DbSet(Of PO)
    Public Property Users As DbSet(Of User)
    Public Property Companyinfos As DbSet(Of Companyinfo)

End Class

I can not get where is the mistake?

What I have tried:

A lot of solutions in net not working with me !