Error in "amount" identifier in the tutorial

Yes:


Still, it did not work

Any idea on how to solve the issue?

This is how I do it already

@quetzi it’s a simple process flow and i don’t see any issues in executing this process flow. It might be your bpmn model/application setup issues. Are you referring right bpmn file which i uploaded last time?

Yes, this is the file I refer to. Yes, maybe it is a set-up thing.