FQL Album not Working in Iphone (FBConnect)

Question

Hi guys, NSString *fql = [NSString stringWithFormat:@"SELECT cover_pid, name FROM album WHERE owner =%lld", self.usersession.uid]; NSDictionary *params = [NSDictionary dictionaryWithObject:fql forKey:@"query"]; NSLog(@"--FBRequest-- %@",fql); [[FBRequest requestWithDelegate:self] call:@"facebook.fql.query" params:params];

I want to access the name and cover_pid from Album but its returning an empty array what should i do?