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

Given that plugins cause ~55% of "fix" errors, this method succeeds for most users.

Opening a project that uses effects you don't have installed can trigger "Unexpected data type" or property creation errors. Step-by-Step Fixes 1. Identify and Remove Problematic Scripts Given that plugins cause ~55% of "fix" errors,

If you're on an After Effects Beta build and get an "Unexpected data type" error, delete specific folders: delete specific folders: