这是初始化表格数据时报的错 。

[Vue warn]: Invalid prop: type check failed for prop "data". Expected Array, got Object 

found in

---> <ElTable> at packages/table/src/table.vue
       <List> at src/views/org/List.vue
         <Catalogue> at src/views/catalogue.vue
           <ElMain> at packages/main/src/main.vue
             <ElContainer> at packages/container/src/main.vue
               <Index2> at src/views/index-2.vue
                 <ElMain> at packages/main/src/main.vue
                   <ElContainer> at packages/container/src/main.vue
                     <Index> at src/views/index.vue
                       <App> at src/App.vue
                         <Root>

TypeError: data.indexOf is not a function
    at VueComponent.updateCurrentRowData (element-ui.common.js:10472:1)
    at VueComponent.setData (element-ui.common.js:11154:1)
    at module.exports.watcher.commit (element-ui.common.js:11284:1)
    at VueComponent.handler (element-ui.common.js:14030:1)
    at invokeWithErrorHandling (vue.esm.js:3753:1)
    at Watcher.run (vue.esm.js:4270:1)
    at flushSchedulerQueue (vue.esm.js:3346:1)
    at Array.eval (vue.esm.js:3879:1)
    at flushCallbacks (vue.esm.js:3801:1)

TypeError: root.forEach is not a function
    at walkTreeNode (element-ui.common.js:10300:1)
    at VueComponent.normalize (element-ui.common.js:10566:1)
    at VueComponent.normalizedData (element-ui.common.js:10521:1)
    at Watcher.get (vue.esm.js:4182:1)
    at Watcher.evaluate (vue.esm.js:4283:1)
    at VueComponent.computedGetter [as normalizedData] (vue.esm.js:4508:1)
    at VueComponent.updateTreeData (element-ui.common.js:10587:1)
    at invokeWithErrorHandling (vue.esm.js:3753:1)
    at Watcher.run (vue.esm.js:4270:1)
    at flushSchedulerQueue (vue.esm.js:3346:1)

TypeError: data.reduce is not a function
    at Proxy.render (element-ui.common.js:11829:1)
    at Vue._render (vue.esm.js:2550:1)
    at VueComponent.updateComponent (vue.esm.js:3096:1)
    at Watcher.get (vue.esm.js:4182:1)
    at Watcher.run (vue.esm.js:4258:1)
    at flushSchedulerQueue (vue.esm.js:3346:1)
    at Array.eval (vue.esm.js:3879:1)
    at flushCallbacks (vue.esm.js:3801:1)

这些报错，其实看第一段代码就可以了，意思就是需要的数组，但是你给了一个object，所以造成了下面一连串的报错。

Invalid prop: type check failed for prop "data". Expected Array, got Object 

 我们定位到代码中报错的那行代码，打印出data的数据看下

可以看到打印出的信息是 ：Service Unavailable==》Unable to find instance for org

意思就是无效的服务器 ，找不到org的实例，这就是后端的问题了，其实是后端的org服务没有注册到注册中心，找后端同事查查原因。

我用的注册中心是nacos，问题原因是org服务配置文件中namespace的值 填错了，改正之后正常。