vue浏览器访问报错

Question

启动后，浏览器访问，现在老是报以下错误：

Uncaught TypeError: Cannot create property 'function mergeHook(
  parentVal,
  childVal
) {
  return childVal
    ? parentVal
      ? parentVal.concat(childVal)
      : Array.isArray(childVal)
        ? childVal
        : [childVal]
    : parentVal
}' on string 'created'
    at mergeField (eval at <anonymous> (http://localhost:8080/app.js:600:2), <anonymous>:1174:18)
    at mergeOptions (eval at <anonymous> (http://localhost:8080/app.js:600:2), <anonymous>:1165:5)
    at Function.Vue.extend (eval at <anonymous> (http://localhost:8080/app.js:600:2), <anonymous>:3503:19)
    at Function.Vue.(anonymous function) [as component] (eval at <anonymous> (http://localhost:8080/app.js:600:2), <anonymous>:3557:43)
    at eval (eval at <anonymous> (http://localhost:8080/app.js:2388:2), <anonymous>:314:10)
    at Array.map (native)
    at Object.install (eval at <anonymous> (http://localhost:8080/app.js:2388:2), <anonymous>:313:15)
    at Function.Vue.use (eval at <anonymous> (http://localhost:8080/app.js:600:2), <anonymous>:3448:22)
    at eval (eval at <anonymous> (http://localhost:8080/app.js:2034:2), <anonymous>:35:15)
    at Object.<anonymous> (http://localhost:8080/app.js:2034:2)
    ...

完全没有入手的地方

Answer 1

信息量太少了，created不要引号，没有支持es6吗？