entity framework - Creating Asp.net Identity user in Seed method of Db Initializer -

i have created data layer ef 6 code first , populating db through seed method of evinitializer class inheriting dropcreatedatabaseifmodelchanges. implementation of seed method

protected override void seed(evcontext context) {    //add other entities using context methods    applicationusermanager manager = new applicationusermanager(new userstore<applicationuser>(context));    var user = new applicationuser { email = "admin@myemail.com" ,username = "admin@myemail.com"};    var result = await manager.createasync(user, "temp_123");//this line gives error. await cannot used in non- async method , cannot make seed async } 

my question how can add user in seed method using usermanager class. when change var result = awit manager.createasync(user, "temp_123");
to
var result = manager.createasync(user, "temp_123").result; //or .wait
application hangs indefinitely

in asp.net-identity-2 usermanager has non async methods create.

var user = new applicationuser { email = "admin@myemail.com", username = "admin@myemail.com" }; manager.create(user, "temp_123"); 

same rolemanager if want create "admin" role.

var rolemanager = new rolemanager<identityrole>(new rolestore<identityrole>(context)); rolemanager.create(new role("admin")); 

make user admin

manager.addtorole(user.id, "admin"); 

edit: trailmax commented, create() extension method comes in microsoft.aspnet.identity namespace not forget using microsoft.aspnet.identity