Started making an Android app for the first time a few days ago and wanted a button in a fragment to trigger a function. Easy enough right? Well not for me...

-Thought if the button is in fragment_xyz.xml the function should be in xyz.kt right?
-Wrote the function and told the button to run it when clicked.
-Tested the button and the app crahsed.
-Spent 3+ hours trying to find the bug.
-Eh fuck it might as well copy paste it from the fragments file to the action the viewpager showing the fragment is on.
-Works perfectly fine first try.
-😑

I spent three fucking hours googling that and trying to debug that while I could have been doing so much more on ither parts of the app...
I mean at least I know now for the future?