Exception: type initializer for 'system.data.sqlclient.sqlconnection'?

Question

I couldn\'t figure out what is the problem for this exception.

The type initializer for \'System.Data.SqlClient.SqlConnection\' threw an exception

Answer 1

I have the same error and the problem was in Web.config. In my case, just add the connectionStrings tag and its value and problem solved.

your connection strings