Please Check and Tell me Why This Error Is Coming

#1

Why This Error Is Coming and how to solve this???

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#2

No One From Coding Blocks Is Solving My Problem Waiting Since 2 Days. If Somebody Is Didn’t Understand What I Want to Express and Ready To Resolve My Issue Please Reply Me, I Will Msg You Again.

Thanks

#3

@harshitkaushik2002_74316a3c9848efff
Can you check if this helps you
https://developer.android.com/reference/kotlin/android/widget/Button