Why Am I Unable to Create an Entity Data Model (EDMX) for MySQL with EF6?

Troubleshooting Entity Data Model Creation Failure for MySQL and EF6

When attempting to create an Entity Data Model (EDMX) for a MySQL database using Entity Framework 6 (EF6), you may encounter an issue where the EDMX file is not created. This article provides a comprehensive guide to resolving this problem and successfully establishing an Entity Framework connection to your MySQL database.

Troubleshooting Steps

1. Uninstall and Reinstall MySQL Components:

   • Uninstall any existing "Connector/NET" and "MySQL for Visual Studio" installations.
   • Install "MySQL for Visual Studio" v2.0.5 CTP (https://mysql.com/downloads/windows/visualstudio-plugin/).
   • Install "Connector/NET" v6.9.10 (https://dev.mysql.com/downloads/connector/net/).

2. Add EF6 via NuGet:

   • In your Visual Studio project, install "EntityFramework" v6.2.0 via NuGet by browsing "Project Tab » Manage NuGet Packages" and searching for "Entity Framework."

3. Add References to MySQL Assemblies:

   • Add references to the following assemblies:
   • MySql.Data.dll
   • MySql.Data.Entity.EF6.dll
   • Browse to these assemblies at "C:Program Files (x86)MySQLConnector.NET 6.9.10Assembliesv4.5"

4. Configure App.config for MySQL EF6 Provider:

   • Add the following provider information to your App.config file under the "entityFramework" section:

   <entityFramework>
       <providers>
         <provider invariantName="MySql.Data.MySqlClient"
              type="MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.Entity.EF6" />
       </providers>
   </entityFramework>

5. Rebuild Project:

   • Rebuild your project to apply the changes.

Conclusion

By following these steps, you should be able to successfully create an Entity Data Model for your MySQL database using EF6. If you continue to encounter issues, please refer to the references provided below for additional troubleshooting resources.

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