c# - The ADO.NET provider with invariant name 'MySql.Data.MySqlClient' is either not registered in the machine or application config file

Question

I have an asp.net solution using entity framework 6 to mysql server.

now I have to work on that solution on a new machine,
but I have some problems:
1) when building the solution I get error: "The ADO.NET provider with invariant name 'MySql.Data.MySqlClient' is either not registered in the machine or application config file".

App.config:

<entityFramework>
  <providers>
    <provider invariantName="MySql.Data.MySqlClient" type="MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.Entity.EF6, Version=6.9.9.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d"></provider>
  </providers>
</entityFramework>
<system.data>
  <DbProviderFactories>
    <remove invariant="MySql.Data.MySqlClient" />
    <add name="MySQL Data Provider" invariant="MySql.Data.MySqlClient" description=".Net Framework Data Provider for MySQL" type="MySql.Data.MySqlClient.MySqlClientFactory, MySql.Data, Version=6.9.9.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d" />
  </DbProviderFactories>
</system.data>  

2) when opening model.edmx file I get message:
"the entity mode designer is unable to display the file you requested".

I have installed on the machine:

1) mysql connector/net 6.9.9
2) mysql for visual studio 1.2.6
3) mysql connector odbc 5.3.6.

what can I do?

Answer 1

I followed most suggested solutions in the internet but for sorry all were failed. The problem occurs because visual studio lacks for MySql connector and I have solved it by installing mysql-connector-net-7.0.4 (https://downloads.mysql.com/archives/c-net/)