Ndtyjky

I am tyring to run my jest tests but keep getting the error below, how can I get my jest tests to run?

● Test suite failed to run
Requires Babel "^7.0.0-0", but was loaded with "6.26.3". If you are sure you have a compatible version of @babel/core, it is likely that something in your build process is loading the wrong version. Inspect the stack trace of this error to look for the first entry that doesn't mention "@babel/core" or "babel-core" to see what is calling Babel.
at throwVersionError (node_modules/@babel/helper-plugin-utils/lib/index.js:65:11)

I have followed the instruction here, but still no joy.

https://jestjs.io/docs/en/getting-started.html#using-babel

My package.json:

{

    "name": "rgcalendar",

    "version": "0.0.1",

    "private": true,

    "scripts": {

        "start": "node node_modules/react-native/local-cli/cli.js start",

        "test": "jest",

        "test:watch": "npm test -- --watch"

    },

    "jest": {

        "preset": "react-native"

    },

    "dependencies": {

        "fsevents": "^1.2.4",

        "googleapi": "^1.0.2",

        "jest-cli": "^23.6.0",

        "moment": "^2.22.2",

        "native-base": "^2.8.1",

        "node-google-calendar": "^1.1.1",

        "prettier": "^1.13.7",

        "prop-types": "^15.6.2",

        "react": "16.3.1",

        "react-dom": "^16.5.0",

        "react-native": "^0.57.4",

        "react-native-autoreheight-webview": "^1.1.1",

        "react-native-calendars": "^1.20.0",

        "react-native-events-calendar": "^1.0.8",

        "react-native-fontawesome": "^5.7.0",

        "react-native-google-signin": "^1.0.0-rc6",

        "react-native-iphone-x-helper": "^1.0.3",

        "react-native-responsive-fontsize": "^0.1.2",

        "react-native-responsive-image": "^2.3.1",

        "react-native-vector-icons": "^4.6.0",

        "react-navigation": "^2.5.5",

        "react-navigation-redux-helpers": "^2.0.2",

        "react-redux": "^5.0.7",

        "redux": "^4.0.0",

        "redux-logger": "^3.0.6",

        "redux-thunk": "^2.3.0",

        "watchman": "^1.0.0"

    },

    "devDependencies": {

        "@babel/cli": "^7.0.0-beta.49",

        "@babel/core": "^7.1.6",

        "@babel/plugin-proposal-class-properties": "^7.0.0-beta.49",

        "@babel/plugin-syntax-dynamic-import": "^7.0.0-beta.49",

        "@babel/preset-env": "^7.0.0-beta.49",

        "@babel/preset-flow": "^7.0.0-beta.49",

        "@babel/preset-react": "^7.0.0-beta.49",

        "babel-core": "^7.0.0-bridge.0",

        "babel-eslint": "8.2.3",

        "babel-jest": "^23.6.0",

        "babel-loader": "^8.0.0-beta",

        "babel-plugin-module-resolver": "^3.1.1",

        "enzyme-adapter-react-16": "^1.5.0",

        "eslint": "^5.0.1",

        "jest": "23.2.0",

        "jest-enzyme": "^6.0.4",

        "react-native-mock": "^0.3.1",

        "react-test-renderer": "16.3.1",

        "regenerator-runtime": "^0.12.1"

    }

}

babelrc:

{

  "presets": ["env", "react"],

  "plugins": [

    "@babel/plugin-proposal-optional-chaining",

    "@babel/plugin-proposal-class-properties",

    "@babel/plugin-syntax-dynamic-import"

  ]

}

I had the same issue. Upgrading to jest@24.0.0 worked for me.