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Error "Left side of assignment is not a reference." in production.

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Yellow-footed Gull posted this in #help-forum
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Yellow-footed GullOP
I've recently updated node to v18.16.1 and have also updated NextJS from 11.0.1 to 13.4.8. Since then, I get the following error when running my app in production but not in dev. Any idea what could be causing this?
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Yi Lon Ma
Show the error
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Yellow-footed GullOP
Here is the error (in console, and in Sentry)
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Yi Lon Ma
well this is the code in production site which means it is minified, there's no way to track down the exact line number of it
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Yellow-footed GullOP
This is the breakdown of the exact line number I get in Sentry. Is that of any help?
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