After Effects Error Asked To Create Unknown Property Of Type Fix ((better)) -

If you are the one creating the preset, ensure that the names in your pseudo-effect do not conflict with After Effects' internal naming structure (e.g., avoid using general terms like "Layer" as a custom property name).

If the problem stems from a downloaded project template, updating how scripts handle animations within your timeline often clears the error instantly. Go to the menu at the top of the program. Select Scripts > Update Legacy Expressions.jsx . If you are the one creating the preset,

Navigate to the folder (typically found in Support Files/Scripts/ScriptUI Panels on Windows or Applications/Adobe After Effects/Scripts/ScriptUI Panels on macOS). If you are the one creating the preset,