def raise_admixture_incompatability_error(parser, other_option):
    """
    Because of the state dependency within ms, it is messy for us to
    support options that affect all populations in conjunction with
    population splits. For now, raise an error.
    """
    parser.error(
        'Cannot currently use the -es and {} options together. Please open an issue on GitHub if this functionality is important to you.'
        .format(other_option))
