table 添加序号，checkbox报错

[easydowork]

添加列：{ type: 'index', width: 60, align: 'center' }, { type: 'selection', width: 60, align: 'center' },

错误： vue.runtime.esm.js?2b0e:601 [Vue warn]: Invalid prop: type check failed for prop "value". Expected String, Number, got Undefined

found in

---> <IOption> <Drop> <ISelect> <Tables> at src/components/tables/tables.vue <Card> <TablesPage> at src/view/components/tables/tables.vue <Content> <Layout> <Content> <Layout>... (1 recursive calls) <Main> at src/components/main/main.vue <App> at src/App.vue <Root>

[AdamWei]

[AdamWei]

table 组件出现这种情况是什意思