Membership provider error mvc web.config - asp.net

Question

I am getting membership error in my application.
This is my web.config section that is creating error.
<membership defaultProvider="DefaultMembershipProvider">
<providers>
<add name="DefaultMembershipProvider" type="System.Web.Providers.DefaultMembershipProvider, System.Web.Providers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" connectionStringName="DefaultConnection" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="false" maxInvalidPasswordAttempts="5" minRequiredPasswordLength="6" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10" applicationName="/" />
</providers>
</membership>
Like all other same questions like this one I have read, are telling me about adding defaultProvider and name to this config file.
But I already have defaultProvider and name set to by default in there.
What other customization needs to be done?
You can see this error here-
http://funranger.com

Answer 1

I suspect there is already a membership provider registered before your configuration file is loaded.
You'll need to remove the first membership provider, and this can be done by clearing all providers before you add one, just as you are doing with your connectionstrings.
In the configuration section, inside the membership/providers section, add a element before the element(s).
<membership>
<providers>
<clear/>
<add name="AspNetSqlMembershipProvider" type="System.Web.Security.SqlMembershipProvider" connectionStringName="WorkI" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="false" maxInvalidPasswordAttempts="5" minRequiredPasswordLength="6" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10" applicationName="/"/>
</providers>
</membership>
And also add the below line in your web.config file.
<connectionStrings><add name="DefaultConnection" connectionString="Data Source=YourServername;Initial Catalog=YourDBname;Integrated Security=True;MultipleActiveResultSets=True" providerName="System.Data.SqlClient" /></connectionStrings>

Answer 2

Here is how your membership provider's declaration should look like in the web.config under the system.web element
<membership defaultProvider="SqlProvider" userIsOnlineTimeWindow="15">
<providers>
<clear />
<add
name="SqlProvider"
type="System.Web.Security.SqlMembershipProvider"
connectionStringName="MySqlConnection"
applicationName="MyApplication"
enablePasswordRetrieval="false"
enablePasswordReset="true"
requiresQuestionAndAnswer="true"
requiresUniqueEmail="true"
passwordFormat="Hashed" />
</providers>
</membership>