EF 5 connection string does not contain the required providerName

Question

I am using entity framework 5.0 to connect to database. I have added connection string in the app.config file and used the below code to get employee detail from the SQL Server database. But, when I try to access, I am getting the below error

The connection string 'SoftwareRequestContext' in the application's configuration file does not contain the required providerName attribute

Code used to retrieve the value from database.

using (SoftwareRequestContext context = new SoftwareRequestContext())
{
   employee = context.Employee.Find(employeeNumber);
}

Connection string added in app.config

<connectionStrings>
    <add name="SoftwareRequestContext" connectionString="Data Source=TestServer\SQLEXPRESS;Initial Catalog=SoftwareRequestWFDemo;Integrated Security=True" />
 </connectionStrings>

Answer 1

Add providerName property in the connection string with value "System.Data.SqlClient" for connecting to SQL Server.

<connectionStrings>
    <add name="SoftwareRequestContext" connectionString="Data Source=TestServer\SQLEXPRESS;Initial Catalog=SoftwareRequestWFDemo;Integrated Security=True" providerName="System.Data.SqlClient"/>
</connectionStrings>