The error is The entry 'AspNetSqlPersonalizationProvider' has already been added.

in my web.cong I have written AspNetSqlPersonalizationProvider only once still it gives me error.

I also tried removing defaultProvider="AspNetSqlPersonalizationProvider". but it still gives the error.

<personalization defaultProvider="AspNetSqlPersonalizationProvider">

And if I write this

<personalization enabled="false" />

it gives the error as enabled attribute is not allowed.

I am using simple controls.