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

If you are working with a Motion Graphics template (.mogrt) from Envato or Adobe Stock:

Corrupted preferences can cause a variety of issues.

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. If you are working with a Motion Graphics template (

The Scenario: You have an expression (the little pick-whip code) linking one property to another. Sometimes, if the source property is deleted or renamed, the expression tries to "create" a link to a property that no longer exists, confusing AE.

The Fix:

Ensure that your After Effects software is up to date. Adobe frequently releases updates that fix known bugs and improve performance.

If you are running a complex script (like DuIK, Limber, or Plexus) when the error appears: Often, the console will name the specific layer

If you have tried every method above and the error remains, use these last-resort techniques.