How to translate vue 3 code to vue 4?

Question

Vue.js

I am doing a project on the lesson on Vue.js version 4.5.9, in the video version 3.5.5. When writing one block of code, the program stops working, although it does not give any errors. The block itself looks like this:

import Vue from 'vue'
import App from './App.vue'
import router from './router'

Vue.config.productionTip = false

new Vue({
  router,
  render: h => h(App),
}).$mount('#app')

How can this be fixed? Either install Vue.js 3.5.5 or translate the code, but how?

Answer 1

Read the changes and make the appropriate edits https://cli.vuejs.org/migrating-from-v3/
To install a specific version, write it simply through the dog npm install -g [email protected], probably the old one will need to be deleted first, but here I xs