out of this folder and place them temporarily on your desktop.
: If you use tools like Motion 4 or Duik , right-click their panel title to "Close Panel," then reopen them via Window > Extensions . out of this folder and place them temporarily
How to Fix the After Effects Error: "Asked to Create Unknown Property of Type" When After Effects opens a file, it builds
This error typically stems from a version mismatch or a missing dependency. When After Effects opens a file, it builds a database of properties. If it finds a property tag that isn't defined in its current library, the system stalls. Common triggers include: They may know exactly what third-party effect, script,
If the error started appearing after you imported a project from a different computer or an online source, reach out to the creator. They may know exactly what third-party effect, script, or step is required for the error not to occur.
: Navigate to File > Project Settings > Expressions and try switching the engine from JavaScript to Legacy ExtendScript . 🔍 Troubleshooting the Source asked to create unknown property of type - Adobe Community