Property Of Type Fix New! | After Effects Error Asked To Create Unknown

Error Fix: "Asked to create unknown property of type..."

If the project file itself is slightly corrupted, you can often bypass the error by importing it into a fresh workspace rather than opening it directly. Open After Effects and create a brand new project. Go to File > Import > File. Select the problematic .aep file.

  1. Quit After Effects.
  2. Windows: Press Ctrl + Alt + Shift and hold them while clicking the After Effects icon to launch it.
  3. Mac: Press Cmd + Option + Shift and hold them while clicking the After Effects icon to launch it.
  4. A dialog will appear asking: "Delete preference files?"
  5. Click OK.
  6. After Effects will launch with default settings. Test if the error persists.

to bring your old project into it. This can sometimes bypass project-level corruption. Change Expression Engine File > Project Settings > Expressions , try switching the "Expressions Engine" to Legacy ExtendScript Error: asked to created unknown property of type "x" (1d16) Error Fix: "Asked to create unknown property of type

Still stuck?

Post your exact workflow and the contents of the AE Console (Window > Console) to the Adobe Community forums or r/AfterEffects. Include which plugins and fonts your project uses. Avoid sharing the AEP file publicly unless stripped of client data. Quit After Effects