Invalid prop: type check failed for prop "centered". Expected Boolean, got String with value "true"

使用Vue + antDesign的时候,出现这个错误
Invalid prop: type check failed for prop "centered". Expected Boolean, got String with value "true"
我需要使用的antDesign的组件是modal,官网api介绍为
Invalid prop: type check failed for prop "centered". Expected Boolean, got String with value "true"
代码中书写:

<a-modal
      title="手动添加展位"
      v-model="visible"
      @ok="hideModal"
      okText="确认添加"
      width="600"
      centered="true"
    >

可以看到centered=“true”这种写法实际上就是字符串,v-bind中是可以书写变量的,于是我猜想是否可以改成:centered=“true”,结果报错消失了~