After Effects Error Asked To Create Unknown Property Of Type Site

Follow these steps in order, from easiest to most advanced.

Use PropertyGroup.addProperty() with a known match name or display name, or create via PropertyGroup.property("ADBE...") . after effects error asked to create unknown property of type

Wrap the offending line in a try...catch to at least prevent the error from stopping the whole script: Follow these steps in order, from easiest to most advanced