Triggering line number in developer's code in stack trace of Dash app errors

[Arnie]

I found another post in the forum where this issue was brought up, but there is no solution mentioned.

Dash traceback not leading to any line in my code

I am working on my first Dash app. I am getting the following error: "Cannot set a frame with no defined index " The issue is that the traceback doesn’t lead to any line in my code. It only goes through installed libraries: Traceback (most recent call last): File "C:\Users\LIAG8802\Documents\Procurement_analytics\venv\lib\site-packages\pandas\core\frame.py", line 3540, in _ensure_valid_index value = Series(value) File "C:\Users\LIAG8802\Documents\Procurement_analytics\venv\lib\site-pa…