Couldn't find preset "es2015" relative to directory

[GGonryun]

🐛 Bug Report

Unable to find preset es2015.

To Reproduce

change directory into the folder ./e2e/babel-plugin-jest-hoist
And then use node ..\..\packages\jest-cli\bin\jest.js

 FAIL  __tests__/integration_automock_off.test.js
  ● Test suite failed to run

    Couldn't find preset "es2015" relative to directory "C:\\Users\\Gonryun\\Documents\\OpenSource\\jest\\e2e\\babel-plugin-jest-hoist"

      at ../../node_modules/babel-core/lib/transformation/file/options/option-manager.js:293:19
          at Array.map (<anonymous>)

 FAIL  __tests__/integration.test.js
  ● Test suite failed to run

    Couldn't find preset "es2015" relative to directory "C:\\Users\\Gonryun\\Documents\\OpenSource\\jest\\e2e\\babel-plugin-jest-hoist"

      at ../../node_modules/babel-core/lib/transformation/file/options/option-manager.js:293:19
          at Array.map (<anonymous>)

Test Suites: 2 failed, 2 total
Tests:       0 total
Snapshots:   0 total
Time:        1.251s
Ran all test suites.

Expected behavior

The test should be executed successfully.

Link to repl or repo (highly encouraged)

https://github.com/GGonryun/jest

I wanted to make changes to standardize file names as per issue #4969 but was unable to pass any of the tests in this folder.

Run npx envinfo --preset jest

Paste the results here:

  System:
    OS: Windows 10
    CPU: (4) x64 Intel(R) Core(TM) i5-7300HQ CPU @ 2.50GHz
  Binaries:
    Node: 10.11.0 - C:\Program Files\nodejs\node.EXE
    Yarn: 1.12.3 - C:\Program Files (x86)\Yarn\bin\yarn.CMD
    npm: 6.4.1 - C:\Program Files\nodejs\npm.CMD

[GGonryun]

inside the folder ./e2e/babel-plugin-jest-hoist I get a warning that the .e2e/babel-plugin-jest-hoist/.babelrc file has Incorrect type. Expected one of string, array. (4, 5) as well. I'm not sure if this is related though.

I did find that removing the .babelrc file entirely allowed the tests to pass successfully, i'm not sure if it was safe to do this though.

[thymikee]

Are you sure you installed deps in e2e/babel-plugin-jest-hoist ?

[GGonryun]

That was it! Sorry about that 😆, glad there was better way. Thank you!

[github-actions]

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