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Unhandled JS Exception: Unexpected identifier ‘_ classCallCheck‘. import call expects exactly one arg

2022-07-21 12:48:00 【Laugh and say threethousand】

One , The phenomenon

react-native Error reporting after project operation ：
Unhandled JS Exception: Unexpected identifier ‘_classCallCheck’. import call expects exactly one argument. no stack

Insert picture description here

Two , Solution

One ： upgrade metro-react-native-babel-preset edition by 0.59.0,yarn start --reset-cache restart
Two ： modify abel.config.js take effect
from ：

 module.exports = {
    
       presets: ['module:metro-react-native-babel-preset'],
    };

Change to 

module.exports = {
    
       presets: [['module:metro-react-native-babel-preset', {
    
            unstable_disableES6Transforms: true
        }]],
    };
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https://yzsam.com/2022/202/202207201728484476.html

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