React Big Calendar views not showing

In a minimal configuration for the views, where I set the views prop to an array with one element = "day" I get a row of 9 empty views buttons. I want to use a custom View, but at this point I am stuck just trying to define the views prop.

<DnDCalendar
  viewType="Resources"
  localizer={localizer}
  events={events}
  startAccessor="start"
  views="{['day']}"
  endAccessor="end"
  defaultDate={visibleDate}
  draggableAccessor={(event) => true}
  onEventDrop={onEventDrop}
  resourceIdAccessor="resourceId"
  resources={resources}
  resourceTitleAccessor="resourceTitle"
/>

Styles included:

import './../node_modules/react-big-calendar/lib/css/react-big-calendar.css'
import './../node_modules/react-big-calendar/lib/addons/dragAndDrop/styles.css'

Quotes around the views prop were the mistake. It also requires "view" or "defaultView" prop:

<DnDCalendar
 viewType="Resources"                      
 localizer={localizer}
 events={events}           
 startAccessor="start"
 views={['day']}
 defaultView="day"
 endAccessor="end"
 defaultDate={visibleDate}
 draggableAccessor={(event) => true}
 onEventDrop={onEventDrop}
 resourceIdAccessor="resourceId"
 resources={resources}
 resourceTitleAccessor="resourceTitle"
/>