Es kann keine Verbindung zu SQL Server LocalDB

Question

etablieren Wenn ich meine Web-Anwendung mit asp.net Mvc laufen, bekomme ich diesen Fehler:

Server Error in '/' Application.

A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance

error source :

var result = await UserManager.CreateAsync(user, model.Password);

Mein web.config:

<connectionStrings> 
    <add name="DefaultConnection" 
     connectionString="Data Source=(LocalDb)\MSSQLLocalDB;AttachDbFilename=|DataDirectory|\aspnet-WebApplication23-20160409124123.mdf;Initial Catalog=aspnet-WebApplication23-20160409124123;Integrated Security=True" 
     providerName="System.Data.SqlClient" /> 
</connectionStrings> 

Anschluss an die Datenbank

public async Task<ClaimsIdentity> GenerateUserIdentityAsync(UserManager<ApplicationUser> manager) 
{ 
     dans CookieAuthenticationOptions.AuthenticationType 
     var userIdentity = await manager.CreateIdentityAsync(this, DefaultAuthenticationTypes.ApplicationCookie); 

     return userIdentity; 
} 

public class ApplicationDbContext : IdentityDbContext<ApplicationUser> 
{ 
    public ApplicationDbContext() 
     : base("DefaultConnection", throwIfV1Schema: false) 
    { 
    } 

    public static ApplicationDbContext Create() 
    { 
     return new ApplicationDbContext(); 
    } 
} 

Habe ich SqlLOcalDB installiert? Kannst du mir bitte helfen?

Answer 1

Ich habe mein Problem gelöst! @Gonzalo Lucero 's Lösung hat mein Problem How to add LocalDB to Visual Studio 2015 Community's SQL Server Object Explorer? !! Vielen Dank für Ihre Bemühungen Jungs !! Ich bin so dankbar.