Default Role Provider could not be found exception while uploading website

hi all
iam new in asp.net and i have the following problem

i have created an application using asp.net membership controls with default aspnetdb.mdf

sql server express database located in app_data folder of my project

in my database file i have created some new tables according to my need.along with the

membership tables


my web.config file is

<?xml version="1.0"?>
<configuration>
  <connectionStrings>
         <add name="info"
           providerName="System.Data.SqlClient" connectionString="Data

Source=.\SQLExpress;Integrated Security=True;User

Instance=True;AttachDBFilename=|DataDirectory|aspnetdb.mdf;"/>
  </connectionStrings>
 
  <system.web>
   ...