No authentication handler is configured to handle the scheme: Microsoft.AspNet.Identity.Application

Question

I am using ASP.NET Core with ASP.NET Identity and have the following:

User user = await _userManager.FindByEmailAsync(myEmail);

SignInResult result = await _signInManager.PasswordSignInAsync(user, myPassword, true, false);

I get a user but when I try to sign in the user I get the error:

[Error] An unhandled exception has occurred while executing the request

System.InvalidOperationException: No authentication handler is configured to handle the scheme: Microsoft.AspNet.Identity.Application

On web project Startup file I have:

public void Configure(IApplicationBuilder applicationBuilder, IHostingEnvironment hostingEnvironment, ILoggerFactory loggerFactory) {

  // Other configuration code lines

  applicationBuilder.UseIISPlatformHandler(options => options.AuthenticationDescriptions.Clear());

  applicationBuilder.UseIdentity();

} // Configure

public void ConfigureServices(IServiceCollection services) {

  // Other configuration code lines

  services
    .AddIdentity<User, Role>()
    .AddEntityFrameworkStores<Context, Int32>()
    .AddDefaultTokenProviders();
}

I have no idea what is wrong. I tried to change the configuration and I always get the same error ...

Any idea?

Answer 1

applicationBuilder.UseIdentity(); 

is what should configure the cookie middleware, make sure that line is called before calling

applicationBuilder.UseMvc()

authentication must be configured before mvc