Redefinition of "String UID"?

I dont know what happend but. i made some few modifications on the code but suddenly. it says redefinition of "String UID" here's the error messages.

error messages - [Mod edit link removed]

My code - [Mod edit link removed]

@zipeees
Please post your code and error messagesin the forum in accordance with the instructions, not on external sites. Thank you.

It means you wrote String UID in the same scope 2 or more times

Your topic has been moved to a more suitable location on the forum. Installation and Troubleshooting is not for problems with (nor for advice on) your project :wink: See About the Installation & Troubleshooting category.