vue中使用...扩展符为什么会报unexpected token的语法错误?

项目是vue-cli自动生成的，所以package.json中已经引入babel也应该可以解析es6语法，可是貌似报错是不能解析...扩展符?
或者是其他什么原因吗?
Add.vue报错部分代码:

import {mapActions, mapMutations} from 'vuex'
  export default{

    methods: {
      save(){
        this.saveArticle()  
      },
      ...mapActions(['saveArticle']),
      ...mapMutations(['SET_ARTICLE'])
      
    }

安装依赖如下:

"devDependencies": {

"autoprefixer": "^6.5.3",

"babel-core": "^6.0.0",

"babel-loader": "^6.0.0",

"babel-preset-es2015": "^6.0.0",

"babel-plugin-transform-object-rest-spread": "^6.19.0",

"cross-env": "^3.0.0",

"css-loader": "^0.25.0",

"file-loader": "^0.9.0",

"url-loader": "^0.5.7",

"vue-loader": "^10.0.0",

"vue-resource": "^1.0.3",

"vue-router": "^2.0.1",

"vue-template-compiler": "^2.1.0",

"vuex": "^2.0.0",

"webpack": "^2.1.0-beta.25",

"webpack-dev-server": "^2.1.0-beta.0"

}

控制台报错:

aluckdog

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vue中使用...扩展符为什么会报unexpected token的语法错误?

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