Calculate a custom tip: Android Basics with Compose

[kotlinProgrammingLover]

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

In which task and step of the codelab can this issue be found?
4. Add a tip-percentage text field

Describe the problem
At the beginning of the previous codelab, the parameter onValueChanged of the function EditNumberField was named this way. From this point, it is called onValueChanged. This causes a syntax error which makes code uncompilable.