Vue-cli: Babel unknown option when trying to integrate Jest

[sts-ryan-holton]

Version

4.1.2

Environment info

System:
    OS: macOS Mojave 10.14.6
    CPU: (8) x64 Intel(R) Core(TM) i7-4770HQ CPU @ 2.20GHz
  Binaries:
    Node: 10.15.3 - /usr/local/bin/node
    Yarn: 1.5.1 - /usr/local/bin/yarn
    npm: 6.13.4 - /usr/local/bin/npm
  Browsers:
    Chrome: 79.0.3945.130
    Firefox: 72.0.2
    Safari: 13.0.2
  npmPackages:
    @vue/babel-helper-vue-jsx-merge-props:  1.0.0 
    @vue/babel-plugin-transform-vue-jsx:  1.1.2 
    @vue/babel-preset-app:  4.1.2 (3.12.1)
    @vue/babel-preset-jsx:  1.1.2 
    @vue/babel-sugar-functional-vue:  1.1.2 
    @vue/babel-sugar-inject-h:  1.1.2 
    @vue/babel-sugar-v-model:  1.1.2 
    @vue/babel-sugar-v-on:  1.1.2 
    @vue/cli-overlay:  4.1.2 
    @vue/cli-plugin-babel: ^4.1.0 => 4.1.2 
    @vue/cli-plugin-eslint: ^4.1.0 => 4.1.2 
    @vue/cli-plugin-router:  4.1.2 
    @vue/cli-plugin-vuex:  4.1.2 
    @vue/cli-service: ^4.1.0 => 4.1.2 
    @vue/cli-shared-utils:  4.1.2 
    @vue/component-compiler:  3.6.0 
    @vue/component-compiler-utils:  3.1.1 (2.6.0)
    @vue/preload-webpack-plugin:  1.1.1 
    @vue/test-utils: ^1.0.0-beta.31 => 1.0.0-beta.31 
    @vue/web-component-wrapper:  1.2.0 
    eslint-plugin-vue: ^5.0.0 => 5.2.3 
    rollup-plugin-vue:  4.7.2 
    vue: 2.6.11 => 2.6.11 
    vue-cli-plugin-p11n: ^0.4.0 => 0.4.0 
    vue-eslint-parser:  5.0.0 
    vue-hot-reload-api:  2.3.4 
    vue-jest: ^3.0.5 => 3.0.5 
    vue-loader:  15.8.3 
    vue-resource: 1.5.1 => 1.5.1 
    vue-router:  3.1.5 
    vue-runtime-helpers:  1.0.0 
    vue-server-renderer:  2.6.11 
    vue-style-loader:  4.1.2 
    vue-template-compiler: 2.6.11 => 2.6.11 
    vue-template-es2015-compiler:  1.9.1 
    vuepress:  1.2.0 
    vuepress-html-webpack-plugin:  3.2.0 
    vuepress-plugin-container: ^2.1.2 => 2.1.2 
    vuepress-plugin-smooth-scroll:  0.0.3 
  npmGlobalPackages:
    @vue/cli: 4.2.2

Steps to reproduce

I've got a spec file setup in my Components directory, every time I try to run the Jest commands in my Vue project created with the CLI it complains about my Babel configuration despite being the defaults:

My babel config:

module.exports = {
  presets: [
    '@vue/cli-plugin-babel/preset'
  ]
}

Apparently this is invalid? And commands fail with ReferenceError: [BABEL] unknown: Unknown option

What is expected?

Commands should not fail with default config

What is actually happening?

Commands are failing

---

I've tried changing the config and removing it, neither of these work.

[sodatea]

Hi, thanks for your report.
Would you please reduce your issue to a small reproducible example (e.g. a GitHub repository together with instructions on how to get to the problem)? Without a runnable example, it would be difficult for us to find out what is going wrong.

[icodinglee]

I fixed it by installing babel-core@ ^7.0.0-bridge.0