Travis ci build failure due to @vue/babel-preset-app/index.js provided an invalid property of "default"

[oGsLP]

Version

3.8.0

Reproduction link

https://github.com/oGsLP/latios

Environment info

System:
    OS: Windows 10
    CPU: (8) x64 Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz
  Binaries:
    Node: 8.11.4 - F:\NodeJS\node.EXE
    Yarn: 1.16.0 - F:\nvs\npm-global\yarn.CMD
    npm: 6.9.0 - F:\NodeJS\npm.CMD
  Browsers:
    Edge: 42.17134.1.0
  npmPackages:
    @vue/babel-helper-vue-jsx-merge-props:  1.0.0
    @vue/babel-plugin-transform-vue-jsx:  1.0.0
    @vue/babel-preset-app:  3.8.0 (3.0.0-beta.11)
    @vue/babel-preset-jsx:  1.0.0
    @vue/babel-sugar-functional-vue:  1.0.0
    @vue/babel-sugar-inject-h:  1.0.0
    @vue/babel-sugar-v-model:  1.0.0
    @vue/babel-sugar-v-on:  1.0.0
    @vue/cli-overlay:  3.8.0
    @vue/cli-plugin-babel: ^3.8.0 => 3.8.0
    @vue/cli-plugin-eslint: ^3.8.0 => 3.8.0
    @vue/cli-plugin-unit-jest: ^3.8.0 => 3.8.0
    @vue/cli-service: ^3.8.0 => 3.8.0
    @vue/cli-shared-utils:  3.8.0
    @vue/component-compiler-utils:  2.6.0
    @vue/eslint-config-prettier: ^4.0.1 => 4.0.1
    @vue/preload-webpack-plugin:  1.1.0
    @vue/test-utils: 1.0.0-beta.29 => 1.0.0-beta.29
    @vue/web-component-wrapper:  1.2.0
    babel-helper-vue-jsx-merge-props:  2.0.3
    babel-plugin-transform-vue-jsx:  4.0.1
    eslint-plugin-vue: ^5.2.2 => 5.2.2 (4.7.1)
    jest-serializer-vue:  2.0.2
    vue: ^2.6.10 => 2.6.10
    vue-eslint-parser:  5.0.0 (2.0.3)
    vue-highlightjs: ^1.3.3 => 1.3.3
    vue-hot-reload-api:  2.3.3
    vue-jest:  3.0.4
    vue-loader:  15.7.0
    vue-router:  3.0.6
    vue-server-renderer:  2.6.10
    vue-style-loader:  4.1.2
    vue-template-compiler: ^2.6.10 => 2.6.10
    vue-template-es2015-compiler:  1.9.1
    vuepress: ^0.14.11 => 0.14.11
    vuepress-html-webpack-plugin:  3.2.0
  npmGlobalPackages:
    @vue/cli: Not Found

Steps to reproduce

npm install
npm test

What is expected?

When I run npm test on my pc , everything works well. But on Travis CI it failed, it seemed to be related to @vue/babel-preset-app, but I don't know how to fix it. And I can't find similar problems online.

What is actually happening?

> vue-cli-service test:unit
 FAIL  src/components/button/button.spec.js
  ● Test suite failed to run
    Plugin 1 specified in "/home/travis/build/oGsLP/latios/node_modules/@vue/babel-preset-app/index.js" provided an invalid property of "default" (While processing preset: "/home/travis/build/oGsLP/latios/node_modules/@vue/babel-preset-app/index.js")
      at Plugin.init (node_modules/jest-config/node_modules/babel-core/lib/transformation/plugin.js:131:13)
          at Array.map (<anonymous>)
          at Array.map (<anonymous>)
 FAIL  tests/unit/test.spec.js
  ● Test suite failed to run
    Plugin 1 specified in "/home/travis/build/oGsLP/latios/node_modules/@vue/babel-preset-app/index.js" provided an invalid property of "default" (While processing preset: "/home/travis/build/oGsLP/latios/node_modules/@vue/babel-preset-app/index.js")
      at Plugin.init (node_modules/jest-config/node_modules/babel-core/lib/transformation/plugin.js:131:13)
          at Array.map (<anonymous>)
          at Array.map (<anonymous>)

[sodatea]

Seems your travis environment has an outdated cache. What about clearing the cache and try again? (follow the instructions in https://www.garyng.xyz/gtil-gitbook/Travis/travis-ci-clear-dependencies-cache.html)
Also, don't upgrade to core-js 3 as it's only compatible with @vue/babel-preset-app v4 alpha.

[oGsLP]

I checked my repo on travis but found no cache, and both core-js 2/3 failed. Still the same problem.
Here are my dependencies

"dependencies": {
    "core-js": "^2.6.9",
    "vue": "^2.6.10",
    "vue-highlightjs": "^1.3.3"
  },
  "devDependencies": {
    "@vue/cli-plugin-babel": "^3.8.0",
    "@vue/cli-plugin-eslint": "^3.8.0",
    "@vue/cli-plugin-unit-jest": "^3.8.0",
    "@vue/cli-service": "^3.8.0",
    "@vue/eslint-config-prettier": "^4.0.1",
    "@vue/test-utils": "1.0.0-beta.29",
    "babel-core": "7.0.0-bridge.0",
    "babel-eslint": "^10.0.1",
    "babel-jest": "^24.8.0",
    "chai": "^4.2.0",
    "coveralls": "^3.0.4",
    "eslint": "^5.16.0",
    "eslint-plugin-vue": "^5.2.2",
    "lint-staged": "^8.2.0",
    "node-sass": "^4.12.0",
    "sass-loader": "^7.1.0",
    "vue-template-compiler": "^2.6.10",
    "vuepress": "^0.14.11"
  }

And travis build logging

npm notice created a lockfile as package-lock.json. You should commit this file.
npm WARN @babel/preset-stage-2@7.0.0-beta.47 requires a peer of @babel/core@7.0.0-beta.47 but none is installed. You must install peer dependencies yourself.
npm WARN @babel/plugin-proposal-decorators@7.0.0-beta.47 requires a peer of @babel/core@7.0.0-beta.47 but none is installed. You must install peer dependencies yourself.
npm WARN @babel/plugin-syntax-decorators@7.0.0-beta.47 requires a peer of @babel/core@7.0.0-beta.47 but none is installed. You must install peer dependencies yourself.
npm WARN @babel/plugin-proposal-export-namespace-from@7.0.0-beta.47 requires a peer of @babel/core@7.0.0-beta.47 but none is installed. You must install peer dependencies yourself.
npm WARN @babel/plugin-proposal-function-sent@7.0.0-beta.47 requires a peer of @babel/core@7.0.0-beta.47 but none is installed. You must install peer dependencies yourself.
npm WARN @babel/plugin-proposal-numeric-separator@7.0.0-beta.47 requires a peer of @babel/core@7.0.0-beta.47 but none is installed. You must install peer dependencies yourself.
npm WARN @babel/plugin-proposal-throw-expressions@7.0.0-beta.47 requires a peer of @babel/core@7.0.0-beta.47 but none is installed. You must install peer dependencies yourself.
npm WARN @babel/preset-stage-3@7.0.0-beta.47 requires a peer of @babel/core@7.0.0-beta.47 but none is installed. You must install peer dependencies yourself.
npm WARN @babel/plugin-proposal-async-generator-functions@7.0.0-beta.47 requires a peer of @babel/core@7.0.0-beta.47 but none is installed. You must install peer dependencies yourself.
npm WARN @babel/plugin-proposal-class-properties@7.0.0-beta.47 requires a peer of @babel/core@7.0.0-beta.47 but none is installed. You must install peer dependencies yourself.
npm WARN @babel/plugin-proposal-object-rest-spread@7.0.0-beta.47 requires a peer of @babel/core@7.0.0-beta.47 but none is installed. You must install peer dependencies yourself.
npm WARN @babel/plugin-proposal-optional-catch-binding@7.0.0-beta.47 requires a peer of @babel/core@7.0.0-beta.47 but none is installed. You must install peer dependencies yourself.
npm WARN @babel/plugin-proposal-unicode-property-regex@7.0.0-beta.47 requires a peer of @babel/core@7.0.0-beta.47 but none is installed. You must install peer dependencies yourself.
npm WARN @babel/plugin-syntax-dynamic-import@7.0.0-beta.47 requires a peer of @babel/core@7.0.0-beta.47 but none is installed. You must install peer dependencies yourself.
npm WARN @babel/plugin-syntax-async-generators@7.0.0-beta.47 requires a peer of @babel/core@7.0.0-beta.47 but none is installed. You must install peer dependencies yourself.
npm WARN @babel/plugin-syntax-object-rest-spread@7.0.0-beta.47 requires a peer of @babel/core@7.0.0-beta.47 but none is installed. You must install peer dependencies yourself.
npm WARN @babel/plugin-syntax-optional-catch-binding@7.0.0-beta.47 requires a peer of @babel/core@7.0.0-beta.47 but none is installed. You must install peer dependencies yourself.
npm WARN @babel/plugin-syntax-export-namespace-from@7.0.0-beta.47 requires a peer of @babel/core@7.0.0-beta.47 but none is installed. You must install peer dependencies yourself.
npm WARN @babel/plugin-syntax-function-sent@7.0.0-beta.47 requires a peer of @babel/core@7.0.0-beta.47 but none is installed. You must install peer dependencies yourself.
npm WARN @babel/plugin-syntax-numeric-separator@7.0.0-beta.47 requires a peer of @babel/core@7.0.0-beta.47 but none is installed. You must install peer dependencies yourself.
npm WARN @babel/plugin-syntax-throw-expressions@7.0.0-beta.47 requires a peer of @babel/core@7.0.0-beta.47 but none is installed. You must install peer dependencies yourself.
npm WARN @babel/plugin-syntax-import-meta@7.0.0-beta.47 requires a peer of @babel/core@7.0.0-beta.47 but none is installed. You must install peer dependencies yourself.
npm WARN @babel/plugin-syntax-class-properties@7.0.0-beta.47 requires a peer of @babel/core@7.0.0-beta.47 but none is installed. You must install peer dependencies yourself.
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.9 (node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.9: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
added 2377 packages from 1291 contributors and audited 63324 packages in 55.565s
found 68 vulnerabilities (64 low, 2 moderate, 2 high)
  run `npm audit fix` to fix them, or `npm audit` for details

Should I install @babel/core@7.0.0-beta.47? But when I replace babel-core@7.0.0-bridge.0 with it, jest or babel-jest can't work.

[sodatea]

I guess it might be caused by vuepress 0.14 introducing conflicting peer dependencies and npm failed to handle it.
What about upgrading it to 1.x and try again?

[oGsLP]

Just now I upgrade my vuepress version and it vanish travis building warning, but when it runs npm test, it reports the same problem.

[sodatea]

Ah got it. Your unit tests weren't set up by vue add @vue/cli-plugin-unit-jest, right? The dependency versions are wrong. @vue/cli-plugin-unit-jest v3 is only compatible with Jest 23. You need to downgrade babel-jest.

[oGsLP]

ahh, it does work well. Thank you very much. You're far too kind and patient.