MVC WebSecurity.CreateUserAndAccount Membership.Provider err

Question

Getting error

To call this method, the "Membership.Provider" property must be an instance of "ExtendedMembershipProvider". 

Line 99:                     if (!WebSecurity.UserExists(register.username)) 

Line 100:                    { 

Line 101:                        WebSecurity.CreateUserAndAccount(register.username, register.password, 

Line 102:                            new { FullName = register.FullName, EmailID = register.EmailID }); 

Line 103:                        Response.Redirect("~/account/login");

below is my register method 

[HttpPost]

[ValidateAntiForgeryToken]

public ActionResult Register(Register register, string actionType)

{

if (actionType == "Save")

{

if (ModelState.IsValid)

{

if (!WebSecurity.UserExists(register.username))

{

WebSecurity.CreateUserAndAccount(register.username, register.password,

new { FullName = register.FullName, EmailID = register.EmailID });

Response.Redirect("~/account/login");

}

}

else

{

ModelState.AddModelError("Error", "Please enter all details");

}

return View();

}

else

{

return RedirectToAction("Index");

}

}

How to solve it

below is my config file

<?xml version="1.0" encoding="utf-8"?>

<!--

For more information on how to configure your ASP.NET application, please visit

http://go.microsoft.com/fwlink/?LinkId=301880

-->

<configuration>

<configSections>

<!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->

<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />

</configSections>

<connectionStrings>

<add name="Mystring" connectionString="Data Source=.;Database=TheGYM;Integrated Security=true;" providerName="System.Data.SqlClient" />

</connectionStrings>

<appSettings>

<add key="webpages:Version" value="3.0.0.0" />

<add key="webpages:Enabled" value="false" />

<add key="ClientValidationEnabled" value="true" />

<add key="UnobtrusiveJavaScriptEnabled" value="true" />

</appSettings>

<system.web>

<authentication mode="None" />

<compilation debug="true" targetFramework="4.5.1" />

<httpRuntime targetFramework="4.5.1" />

<!--<roleManager enabled="true" defaultProvider="SimpleRoleProvider">

<providers>

<clear />

<add name="SimpleRoleProvider" type="WebMatrix.WebData.SimpleRoleProvider, WebMatrix.WebData" />

</providers>

</roleManager>

<membership defaultProvider="SimpleMembershipProvider">

<providers>

<clear />

<add name="SimpleMembershipProvider" type="WebMatrix.WebData.SimpleMembershipProvider, WebMatrix.WebData" />

</providers>

</membership>-->

<sessionState mode="InProc" customProvider="DefaultSessionProvider">

<providers>

<add name="DefaultSessionProvider" type="System.Web.Providers.DefaultSessionStateProvider, System.Web.Providers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" connectionStringName="DefaultConnection" />

</providers>

</sessionState>

</system.web>

<system.webServer>

<modules>

<remove name="FormsAuthentication" />

</modules>

</system.webServer>

<runtime>

<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">

<dependentAssembly>

<assemblyIdentity name="Microsoft.Owin" publicKeyToken="31bf3856ad364e35" />

<bindingRedirect oldVersion="0.0.0.0-3.0.0.0" newVersion="3.0.0.0" />

</dependentAssembly>

<dependentAssembly>

<assemblyIdentity name="Microsoft.Owin.Security.OAuth" publicKeyToken="31bf3856ad364e35" />

<bindingRedirect oldVersion="0.0.0.0-3.0.0.0" newVersion="3.0.0.0" />

</dependentAssembly>

<dependentAssembly>

<assemblyIdentity name="Microsoft.Owin.Security.Cookies" publicKeyToken="31bf3856ad364e35" />

<bindingRedirect oldVersion="0.0.0.0-3.0.0.0" newVersion="3.0.0.0" />

</dependentAssembly>

<dependentAssembly>

<assemblyIdentity name="Microsoft.Owin.Security" publicKeyToken="31bf3856ad364e35" />

<bindingRedirect oldVersion="0.0.0.0-3.0.0.0" newVersion="3.0.0.0" />

</dependentAssembly>

<dependentAssembly>

<assemblyIdentity name="Newtonsoft.Json" culture="neutral" publicKeyToken="30ad4fe6b2a6aeed" />

<bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0" />

</dependentAssembly>

<dependentAssembly>

<assemblyIdentity name="System.Web.Helpers" publicKeyToken="31bf3856ad364e35" />

<bindingRedirect oldVersion="0.0.0.0-3.0.0.0" newVersion="3.0.0.0" />

</dependentAssembly>

<dependentAssembly>

<assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />

<bindingRedirect oldVersion="0.0.0.0-5.2.2.0" newVersion="5.2.2.0" />

</dependentAssembly>

<dependentAssembly>

<assemblyIdentity name="System.Web.Optimization" publicKeyToken="31bf3856ad364e35" />

<bindingRedirect oldVersion="1.0.0.0-1.1.0.0" newVersion="1.1.0.0" />

</dependentAssembly>

<dependentAssembly>

<assemblyIdentity name="System.Web.WebPages" publicKeyToken="31bf3856ad364e35" />

<bindingRedirect oldVersion="0.0.0.0-3.0.0.0" newVersion="3.0.0.0" />

</dependentAssembly>

<dependentAssembly>

<assemblyIdentity name="WebGrease" publicKeyToken="31bf3856ad364e35" />

<bindingRedirect oldVersion="0.0.0.0-1.5.2.14234" newVersion="1.5.2.14234" />

</dependentAssembly>

<dependentAssembly>

<assemblyIdentity name="System.Web.WebPages.Razor" publicKeyToken="31bf3856ad364e35" culture="neutral" />

<bindingRedirect oldVersion="0.0.0.0-3.0.0.0" newVersion="3.0.0.0" />

</dependentAssembly>

</assemblyBinding>

</runtime>

<entityFramework>

<defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">

<parameters>

<parameter value="mssqllocaldb" />

</parameters>

</defaultConnectionFactory>

<providers>

<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />

</providers>

</entityFramework>

</configuration>