Failed to compile on v3

[mrquokka]

After upgrade build crushed
node_17.2.0

-  Building for production...
 ERROR  Failed to compile with 1 error03:48:10

 error  in ./node_modules/v-calendar/dist/es/index.js

Module parse failed: Unexpected token (1809:19)
You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders
| const resolveEl = (target) => {
|   if (target == null)
>     return target ?? null;
|   if (document && isString_1(target))
|     return document.querySelector(target);

 @ ./node_modules/cache-loader/dist/cjs.js!./node_modules/vue-cli-plugin-coffee/node_modules/thread-loader/dist/cjs.js!./node_modules/babel-loader/lib!./node_modules/coffee-loader/dist/cjs.js!./node_modules/cache-loader/dist/cjs.js??ref--1-0!./node_modules/@vue/cli-service/node_modules/vue-loader-v16/dist??ref--1-1!./src/components/date_picker.vue?vue&type=script&lang=coffee 2:0-40 7:17-27
 @ ./src/components/date_picker.vue?vue&type=script&lang=coffee
 @ ./src/components/date_picker.vue
 @ ./node_modules/cache-loader/dist/cjs.js!./node_modules/vue-cli-plugin-coffee/node_modules/thread-loader/dist/cjs.js!./node_modules/babel-loader/lib!./node_modules/coffee-loader/dist/cjs.js!./node_modules/cache-loader/dist/cjs.js??ref--1-0!./node_modules/@vue/cli-service/node_modules/vue-loader-v16/dist??ref--1-1!./src/App.vue?vue&type=script&lang=coffee
 @ ./src/App.vue?vue&type=script&lang=coffee
 @ ./src/App.vue
 @ ./src/main.js
 @ multi ./src/main.js ./src/add_metrics.js

[Jebasuthan]

After upgrade build crushed

@mrquokka I am also facing the same issue. Any luck?

[crodrigueza16]

Same with node 14.21.3

[mrquokka]

After upgrade build crushed

@mrquokka I am also facing the same issue. Any luck?

i think that problems is Nullish_coalescing (??) - i can try to change node/babel versions if author disagree to replace it :(

[ioannisgiannis]

Hello,

Same issue for me.
After upgrading from v3.0.0 to v3.0.1 the npm install failed.
vue.js: v3.2.47
node.js: v16.19.0

Screenshot of the error:

[crodrigueza16]

At the moment, I have fixed version 3.0.0-alpha.8 in my package.json to avoid this problem.

[mrquokka]

Solved by upgrade to vue-cli 5.* versions instead of 4.5.* + core-js (just make new temp package and copy dependecies)
(remember, you may need this fix vuejs/vue-cli#6785)

[kovelo]

Same issue here, it is definitely due to the nullish-coalescing-operator. Adding that plugin to my babel configuration does not fix the issue though.

[kovelo]

Update, I have fixed this...

1. Install @babel/plugin-proposal-nullish-coalescing-operator as a dev dependency
2. Update babel.config.js and add it as a plugin, here is my babel.config

module.exports = {
  presets: [
    '@vue/cli-plugin-babel/preset'
  ],
 plugins: [
    '@babel/plugin-proposal-optional-chaining',
    '@babel/plugin-proposal-private-methods',
    '@babel/plugin-proposal-nullish-coalescing-operator'
  ]
}

3. Update vue.config.js to transpile the v-calendar dependency, here is the relevant part

module.exports = {
  transpileDependencies: [
    'v-calendar'
  ]
}

That should solve this issue.