BasicUi.Ask functionality throws a panic about cli HOT 2 CLOSED

ui := &cli.BasicUi{Writer: os.Stdout}

    meta := command.Meta {
        Ui: ui,
    }

    Commands = map[string]cli.CommandFactory{

        "apply": func() (cli.Command, error) {
            return &command.ApplyCommand {
                Ui: ui,
            }, nil
        },

        "create": func() (cli.Command, error) {
            return &command.CreateCommand {
                Meta: meta,
                Ui: ui,
            }, nil
        },
..
..
m.Password, err = m.Ui.AskSecret("Please provide a password: ")

answer, err := cc.Ui.Ask("Use default template? [y/n]")

ui := &cli.BasicUi{Writer: os.Stdout, Reader: os.Stdin}