NodeJS : iOs build failing - UnhandledPromiseRejectionWarning: TypeError: Cannot read property 'toLo

NodeJS : iOs build failing - UnhandledPromiseRejectionWarning: TypeError: Cannot read property 'toLowerCase' of undefined
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On Google, Search for "hows tech developer connect"

Here's a secret feature that I promised to disclose to you.
This is a YouTube's feature which works on Desktop.
First, Make sure this video is playing.
Next, enter the letters 'awesome' on your keyboard.
Your YouTube progress bar will transform into a flashing rainbow.

A short overview of who I am,
Hello there, my name is Delphi.
Allow me to support you in answering your questions.
NodeJS : iOs build failing - UnhandledPromiseRejectionWarning: TypeError: Cannot read property 'toLowerCase' of undefined
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NodeJS read iOs property : Cannot - of failing undefined 'toLowerCase' TypeError: build UnhandledPromiseRejectionWarning: