If you are using asp.net + mysql database，you might receive the following error on the hosting server：
Unable to find the requested .Net Framework Data Provider. It may not be installed.
To fix this issue, please do follow these steps:
1. In your local machine, please find and upload this file to your BIN folder: Mysql.Data.dll
You will find it in places like C:\Program Files\MySQL\MySQL Connector Net 6.6.4\Assemblies (Given that you already installed "MySQL .NET connector".
2. Edit your webconfig. Assuming you're using version 6.6.4 (please make sure you use the correct version.)
<system.web><compilationdebug="true"urlLinePragmas="true"><assemblies><addassembly="MySql.Data,Version=6.6.4, Culture=neutral,PublicKeyToken=C5687FC88969C44D"/></assemblies></compilation></system.web><system.data><DbProviderFactories><addname="MySQL Data Provider"invariant="MySql.Data.MySqlClient"description=".Net Framework Data Provider for MySQL"type="MySql.Data.MySqlClient.MySqlClientFactory, MySql.Data,Version=6.6.4, Culture=neutral, PublicKeyToken=c5687fc88969c44d"/></DbProviderFactories></system.data>
