Vue.js 3: Cannot import Vue global object - vue.js

Question

I'm going crazy trying to reconcile the Vue 3 CLI output into something that works with various tutorials and plugins that all use the Vue object, as in Vue.createApp(.... In my project, I can use
import {createApp} from 'vue';
createApp(...
but import Vue from 'vue'; results in Vue still being undefined. I have Vue 3 installed via NPM. Clearly there is something critical that I don't understand about NPM imports, how could the {createApp} import work if importing the whole module does not work?
From package.json:
"dependencies": {
"#babel/polyfill": "^7.12.1",
"apexcharts": "^3.22.1",
"core-js": "^3.6.5",
"d3": "^6.2.0",
"vue": "^3.0.0",
"vue-router": "^4.0.0-rc.1",
"vue3-apexcharts": "^1.0.0"
},
"devDependencies": {
"#vue/cli-plugin-babel": "~4.5.0",
"#vue/cli-plugin-eslint": "~4.5.0",
"#vue/cli-service": "~4.5.0",
"#vue/compiler-sfc": "^3.0.0",
"babel-eslint": "^10.1.0",
"babel-plugin-transform-regenerator": "^6.26.0",
"eslint": "^6.7.2",
"eslint-plugin-vue": "^7.0.0-0"
},
Here is my temporary main.js. This prints 'undefined' followed by the correct createApp function definition:
import Vue from 'vue';
import {createApp} from 'vue';
console.log(Vue);
console.log(createApp);

Answer 1

If you're working with CDN Vue is available as global variable which could be used to create instance by calling the method createApp like Vue.createApp({...}), but if you're working with a bundler which uses npm modules, there no Vue object imported from vue module so you should import createApp from it to create a new instance like :
import {createApp} from 'vue';
let app=new createApp({...})
app.use(somePlugin)
app.mount("#app")
for more details please check the migration guide of global API