Are you encountering the frustrating "Asked to create unknown property of type" error in Adobe After Effects? This error can occur when working with properties, effects, or scripts, and can be a major roadblock to your creative workflow. In this article, we'll explore the causes of this error and provide step-by-step solutions to help you fix it.
After Effects Error: "Asked to Create Unknown Property of Type" - Causes and Fixes
This can sometimes occur due to expressions or scripts trying to access properties that no longer exist or have been renamed. Review any expressions or scripts in your project. Are you encountering the frustrating "Asked to create
out of this folder and place them temporarily on your desktop.
Sometimes the "fix" error is triggered by leftover corrupt data in the disk cache or a miswritten preference file. After Effects Error: "Asked to Create Unknown Property
Before diving into the detailed fixes, use this guide to identify the most likely cause of your error:
If the error is caused by an old template, you can often fix it by converting the expressions to the modern engine: File > Scripts > Update Legacy Expressions.jsx Alternatively, go to File > Project Settings > Expressions and change the Expressions Engine to Legacy ExtendScript 2. Troubleshoot Scripts and Plugins Isolate Scripts : Remove scripts from the ScriptUI Panels Sometimes the "fix" error is triggered by leftover
When you download a project template and are missing the plugins (like Red Giant, Video Copilot, etc.) that the project relies on, expressions will break and cause this error.
Corrupted preview data can continuously trigger property errors during real-time timeline previews. asked to create unknown property of type - Adobe Community