I finally found that the error was caused by this section of the configuration (now I no longer use it):
<system.data> <DbProviderFactories> <add name="MySQL Data Provider" invariant="MySql.Data.MySqlClient" description=".Net Framework Data Provider for MySQL" type="MySql.Data.MySqlClient.MySqlClientFactory, mysql.data" /> </DbProviderFactories> </system.data>
I deleted it and now it worked correctly.
Davide Icardi
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