After Effects Error Asked To Create Unknown Property Of Type Fix !!top!! May 2026

"asked to create unknown property of type" error in After Effects typically occurs when the software tries to access a feature, effect, or script parameter that it doesn't recognize. This usually points to a missing plugin, an outdated expression, or a conflicting script. Common Fixes Install Missing Plugins:

After Effects Error: Asked to Create Unknown Property of Type - FIX "asked to create unknown property of type" error

Step 3: Use the Console

Open the After Effects Console by going to Window > Console (or pressing Ctrl+Shift+Alt+C on Windows, Cmd+Shift+Option+C on Mac). Look for red text. Often, the console will name the specific layer or effect causing the "fix" request. Look for red text

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). Drafting a Feature: "Property Resolver" Drafting a Feature: "Property Resolver"