nested function - Kotlin "variable expected" error when doing assignment to Array element

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I'm writing the following nested function where dfsVisit uses the arrays "numCaminos" and "colores" declared in the outer function

However the kotlin compiler is giving me a "variable expected" error on the assignments in lines 31 and 34 specifically, this error doesn't show up on any of the other Array assignments within the nested dfsVisit function. I tried de-nesting the functions and passing the arrays as arguments of dfsVisit but the problem persisted on those 2 assignments specifically. Why could this be happening?

I'm running the Kotlin compiler in Manjaro Linux through the repository package

Note: Sorry for using a picture instead of a code block, the post editor was giving me some formatting issues.

For reference, this answer explains some reasons why posting text is better than images; it also links to this question giving info on how to format code blocks. – gidds Mar 24, 2022 at 10:30

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