Vue报错 TypeError Cannot read properties of undefined (reading ‘protocol‘)_typeerror: cannot read properties of undefined (re

Vue报错: Uncaught (in promise) TypeError: Cannot read properties of undefined (reading ‘protocol’)

• 报错信息:

  Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'protocol')
  at isURLSameOrigin (isURLSameOrigin.js?3934:57)
  at dispatchXhrRequest (xhr.js?b50d:145)
  at new Promise (<anonymous>)
  at xhrAdapter (xhr.js?b50d:15)
  at dispatchRequest (dispatchRequest.js?5270:58)
  at Axios.request (Axios.js?0a06:108)
  at wrap (bind.js?1d2b:9)
  at Function.Vue.use (vue.runtime.esm.js?2b0e:5123)
  at eval (main.js?56d7:17)
  at Module../src/main.js (app.js:1134)
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• 问题原因，main.js中引用axios区别:

  import axios from “axios”;

  Vue.use(axios);

• 正确写法:

  import axios from “axios”;

  Vue.prototype.axios = axios;

vue.use和vue.prot