npm & babel 7 issues

Expo SDK
1

I’m trying to upgrade to sdk 31 and having trouble getting babel properly upgraded.
I have "@babel/core": "^7.0.0-0", in my devDependencies, though I’ve tried without that as well.

The issue is when I run jest, I get the error: Requires Babel "^7.0.0-0", but was loaded with "6.26.3".

npm list | grep -v deduped | grep babel/core shows @babel/core@7.2.2.

But, package-lock.json has "babel-core": {"version": "6.26.3" ...}.

I’ve tried reinstalling node modules, deleting package-lock.json, nothing helps.

This seems like a more general npm issue and not exactly expo related, but hopefully someone here can help?

2

I’ve solved it now, somehow. Unfortunately I don’t know what exactly I changed. In case it helps anyone, relevant parts from my working package.json:

  "devDependencies": {
    "@types/jest": "^23.3.9",
    "@types/react": "^16.7.4",
    "@types/react-native": "^0.57.8",
    "babel-core": "^7.0.0-bridge.0",
    "babel-jest": "^23.6.0",
    "babel-preset-expo": "^5.0.0",
    "jest": "^23.6.0",
    "jest-expo": "^31.0.0",
    "react-native-testing-library": "^1.3.0",
    "react-native-typescript-transformer": "^1.2.10",
    "ts-jest": "^23.10.4",
    "tslint": "^5.11.0",
    "typescript": "^3.1.6"
  },
  "main": "./node_modules/react-native-scripts/build/bin/crna-entry.js",
  "scripts": {
    "test": "node_modules/.bin/jest"
  },
  "jest": {
    "preset": "jest-expo"
  },
  "dependencies": {
    "expo": "^31.0.6",
    "expo-cli": "^2.6.11",
    "lodash": "^4.17.11",
    "react": "16.5.0",
    "react-native": "https://github.com/expo/react-native/archive/sdk-31.0.1.tar.gz",
    "react-native-button": "^2.3.0",
    "react-native-keyboard-aware-scroll-view": "^0.4.0",
    "sentry-expo": "~1.11.0"
  },

This was mostly copied from https://github.com/akveo/akveo-react-native-boilerplate

3

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