E204 - scroll_range must be >= 0 or "auto"

Cause

A slide's scroll_range: is a negative number. Allowed values are non-negative numbers (explicit scroll length) or the literal string "auto" (content-driven height).

Example

{ title: "T", elements: [...], scroll_range: -100 }

How to fix

Use 0, a positive value, or "auto". "auto" is the default and fits the scroll range to the slide's content height.