# React 16 error on after build

**URL:** <https://devforum.zoom.us/t/react-16-error-on-after-build/5693>\
**Category:** Web\
**Created:** [August 27, 2019, 4:27am UTC](https://devforum.zoom.us/t/react-16-error-on-after-build/5693 "2019-08-27T04:27:26Z")\
**Posts on this page:** 1\
**Showing post:** 5

<div class="post-metadata">

**Author:** ![nezto](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/nezto/32/1668_2.png) [@nezto](https://devforum.zoom.us/u/nezto)\
**Post date:** [August 28, 2019, 2:23pm UTC](https://devforum.zoom.us/t/react-16-error-on-after-build/5693/5 "2019-08-28T14:23:16Z")

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Hi bro, I solved this problem with a configuration in config-overrides.js

config.optimization = {  
minimizer: [  
new UglifyJsPlugin({  
uglifyOptions: { keep\_fnames: true } //this line is 💪  
})  
]  
};

Thanks

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