The SB Admin example we had exhibited a number of issues, which is why we later replaced it with something which was a much better example of how an Angular application should be built.
Can you tell me why you wanted SB Admin? If you are learning Angular, our Quiz Maniac would be better than our older SB Admin example.
There quite a few SB Admin + Angular examples in the wild though, here’s one that is fairly popular: https://github.com/start-angular/SB-Admin-BS4-Angular-5