Visual Studio 2012, 2013, 2015 and ASP.NET Web Configuration Tool

Run this command in console(cmd)
"C:\Program Files\IIS Express\iisexpress.exe" /path:c:\windows\Microsoft.NET\Framework\v4.0.30319\ASP.NETWebAdminFiles /vpath:"/asp.netwebadminfiles" /port:8089 /clr:4.0 /ntlm
Than open your browser and open this url http://localhost:8089/asp.netwebadminfiles/default.aspx?applicationPhysicalPath=[Exact_Project_Path]\&applicationUrl=/ 
Also make sure you have this connection string in your web.config file

<connectionStrings>
    <clear/>
    <add name="LocalSQLServer" connectionString="......." providerName="System.Data.SqlClient"/>
  </connectionStrings>

<clear> is important