How can I create an Ionic build from a private Ionic template in BitBucket?

Now I obviously know what the username/password is as it is my account for Bitbucket, but don’t even get a prompt How I create a create a Ionic build from an private Ionic template in BitBucket?

Is there a way you can do this with private BitBucket accounts? Seems to throw a Github when error I try …ionic start BBIonicBuild https://bitbucket.org/myuser/myreponame