Android Basics: tip-calculator

URL of codelab
https://developer.android.com/codelabs/basic-android-kotlin-training-tip-calculator?continue=https%3A%2F%2Fdeveloper.android.com%2Fcourses%2Fpathways%2Fandroid-basics-kotlin-unit-2-pathway-1%23codelab-https%3A%2F%2Fdeveloper.android.com%2Fcodelabs%2Fbasic-android-kotlin-training-tip-calculator#3

In which task and step of the codelab can this issue be found?
Display the tip, step 3

Describe the problem
Code suggested is
binding.tipResult.text = getString(R.string.tip_amount, formattedTip)
but this doesn't work. A small change works:
binding.tipResult.text = getString(R.string.tip_amount) + formattedTip

Steps to reproduce?
Paste the code from the code lab, problem is highlighted in red in IntelliJ

Versions
Android Studio version: Using IntelliJ 2021.1.1
API version of the emulator:

Additional information
Include screenshots if they would be useful in clarifying the problem.

[osuleymanova]

@griffinevo
Thank you for reaching out to us.
As for the error highlighted in red we appreciate if you share the screenshot of it as we couldn't observe it on our side:

.

Please feel free to reopen the ticket with the requested screenshot