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Unhandled JS Exception: Unexpected identifier '_classCallCheck'. import call expects exactly one argument. no stack

See original GitHub issue

I have a similar issue: Unhandled JS Exception: Unexpected identifier ‘_classCallCheck’. import call expects exactly one argument. no stack Please helps me

I have this issue too and my package.json is:

{
  "main": "index.js",
  "scripts": {
    "android": "react-native run-android",
    "ios": "react-native run-ios",
    "web": "expo start --web",
    "start": "react-native start",
    "test": "jest"
  },
  "dependencies": {
    "@mohamadkh75/react-native-jalali-datepicker": "^1.1.1",
    "@react-native-async-storage/async-storage": "^1.15.17",
    "@react-native-community/slider": "^4.2.0",
    "@react-native-masked-view/masked-view": "^0.2.6",
    "@react-navigation/bottom-tabs": "^6.0.9",
    "@react-navigation/drawer": "^6.1.8",
    "@react-navigation/native": "^6.0.6",
    "@react-navigation/stack": "^6.0.11",
    "expo": "~38.0.1",
    "expo-splash-screen": "~0.4.0",
    "expo-status-bar": "^1.0.0",
    "expo-updates": "~0.2.10",
    "pushe-react-native": "^2.5.0",
    "react": "~16.11.0",
    "react-dom": "~16.11.0",
    "react-native": "0.64.2",
    "react-native-adtrace": "^1.2.3",
    "react-native-camera": "^4.2.1",
    "react-native-chart-kit": "^6.11.0",
    "react-native-elements": "^3.4.2",
    "react-native-geolocation-service": "^5.3.0-beta.4",
    "react-native-gesture-handler": "~1.6.0",
    "react-native-image-picker": "^4.7.1",
    "react-native-maps": "^0.30.1",
    "react-native-paper": "^4.11.2",
    "react-native-qrcode-scanner": "^1.5.4",
    "react-native-reanimated": "~1.9.0",
    "react-native-safe-area-context": "^3.3.2",
    "react-native-screens": "~2.9.0",
    "react-native-snap-carousel": "^3.9.1",
    "react-native-svg": "^12.1.1",
    "react-native-swiper": "^1.6.0",
    "react-native-unimodules": "~0.10.1",
    "react-native-vector-icons": "^9.0.0",
    "react-native-web": "~0.11.7",
    "react-navigation": "^4.4.4",
    "react-redux": "^7.2.6",
    "redux": "^4.1.2",
    "redux-logger": "^3.0.6",
    "redux-persist": "^6.0.0",
    "redux-saga": "^1.1.3"
  },
  "devDependencies": {
    "@babel/core": "~7.9.0",
    "babel-jest": "~25.2.6",
    "jest": "~25.2.6",
    "react-test-renderer": "~16.11.0"
  },
  "jest": {
    "preset": "react-native"
  },
  "private": true
}

what is _classCallCheck and how it works? please help??

Issue Analytics

State:
Created 2 years ago
Reactions:5
Comments:15

Top GitHub Comments

26reactions

younasmcommented, Feb 22, 2022

I have a similar issue: Unhandled JS Exception: Unexpected identifier ‘_classCallCheck’. import call expects exactly one argument. no stack Please helps me

I have this issue too and my package.json is:

{
  "main": "index.js",
  "scripts": {
    "android": "react-native run-android",
    "ios": "react-native run-ios",
    "web": "expo start --web",
    "start": "react-native start",
    "test": "jest"
  },
  "dependencies": {
    "@mohamadkh75/react-native-jalali-datepicker": "^1.1.1",
    "@react-native-async-storage/async-storage": "^1.15.17",
    "@react-native-community/slider": "^4.2.0",
    "@react-native-masked-view/masked-view": "^0.2.6",
    "@react-navigation/bottom-tabs": "^6.0.9",
    "@react-navigation/drawer": "^6.1.8",
    "@react-navigation/native": "^6.0.6",
    "@react-navigation/stack": "^6.0.11",
    "expo": "~38.0.1",
    "expo-splash-screen": "~0.4.0",
    "expo-status-bar": "^1.0.0",
    "expo-updates": "~0.2.10",
    "pushe-react-native": "^2.5.0",
    "react": "~16.11.0",
    "react-dom": "~16.11.0",
    "react-native": "0.64.2",
    "react-native-adtrace": "^1.2.3",
    "react-native-camera": "^4.2.1",
    "react-native-chart-kit": "^6.11.0",
    "react-native-elements": "^3.4.2",
    "react-native-geolocation-service": "^5.3.0-beta.4",
    "react-native-gesture-handler": "~1.6.0",
    "react-native-image-picker": "^4.7.1",
    "react-native-maps": "^0.30.1",
    "react-native-paper": "^4.11.2",
    "react-native-qrcode-scanner": "^1.5.4",
    "react-native-reanimated": "~1.9.0",
    "react-native-safe-area-context": "^3.3.2",
    "react-native-screens": "~2.9.0",
    "react-native-snap-carousel": "^3.9.1",
    "react-native-svg": "^12.1.1",
    "react-native-swiper": "^1.6.0",
    "react-native-unimodules": "~0.10.1",
    "react-native-vector-icons": "^9.0.0",
    "react-native-web": "~0.11.7",
    "react-navigation": "^4.4.4",
    "react-redux": "^7.2.6",
    "redux": "^4.1.2",
    "redux-logger": "^3.0.6",
    "redux-persist": "^6.0.0",
    "redux-saga": "^1.1.3"
  },
  "devDependencies": {
    "@babel/core": "~7.9.0",
    "babel-jest": "~25.2.6",
    "jest": "~25.2.6",
    "react-test-renderer": "~16.11.0"
  },
  "jest": {
    "preset": "react-native"
  },
  "private": true
}

what is _classCallCheck and how it works? please help??

my Error gone by updating

"babel-preset-expo": "~8.1.0", to "babel-preset-expo": "~8.3.0",

then run expo start -c

Happy Coding!

10reactions

micahgoodmancommented, Feb 3, 2022

@mojvan and @vivek-y – this was linked in a similar thread and worked for me https://github.com/babel/babel/issues/14139#issuecomment-1011836916 (specifically, the part about updating my babel.config.js)