I'm relatively new to Vuejs and I’ve been stuck on with the following error for a while now: (Appears when page loads)
Uncaught TypeError: Cannot redefine property: $router
at Function.defineProperty ()
at Function.install (VM2179 vue-router.esm.js:526)
at Function.Vue.use (vue.js:4738)
at eval (VM2179 vue-router.esm.js:2447)
at Object../node_modules/vue-router/dist/vue-router.esm.js (VM2105 app.js:1615)
at __webpack_require__ (VM2105 app.js:712)
at fn (VM2105 app.js:95)
at eval (VM2178 index.js:3)
at Object../src/router/index.js (VM2105 app.js:2415)
at __webpack_require__ (VM2105 app.js:712)
This issue doesn't seem to be affecting the usability of the webapp and I’m pretty sure I’m not declaring Vue.use(Router) more than once…
Here is my index.js file: (in src/router)
import Vue from 'vue'
import Router from 'vue-router'
import Blog from '../components/Blog.vue'
import BlogPost from '../components/BlogPost.vue'
Vue.use(Router)
Vue.config.silent = true
export default new Router({
routes: [
{
path: '/blog',
name: 'Blog',
component: Blog
},
{
path: '/blog/:slug',
name: 'Blog-post',
component: BlogPost
}
]
})
app.ts: (in src, main entry point)
import Vue from 'vue'
import App from './App.vue'
import router from './router'
import store from './store/simple_store'
import '../assets/app.css'
import './assets/main_logo.css'
import './assets/pages/page_header_animation.css'
new Vue({
el: '#app',
router,
store,
render: h => h(App)
})
Please help! Thank you!!
Solved!
In my index.html file, I had imported vue again:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1.0">
<title>Meko Deng</title>
</head>
<body>
<div id="app"></div>
<!-- <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/vue.js"></script> -->
</body>
</html>
Commenting that out did the trick!
This is due to the following code in vue-router
if (inBrowser && window.Vue) {
window.Vue.use(VueRouter);
}
which is really only present for when you're including files in <script>
blocks (ie, no build system).
Remove any <script>
elements relating to Vue or related components; you don't need them when using Webpack.
Looks like you used Webpack and had forgotten set
externals: {
Vue: 'vue'
}
In this case you had initialized vue and vue-router twice in the external CND and in the webpacks's lib.
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