I've used Control + P ➔ Follow Path to animate an object along a path, and now I want to keyframe when the animation should start and end, but when I try to set a keyframe for the Evaluation Time value in the Curve Object Data panel, I get an error like in the screenshot.

What am I doing wrong? Or is there a different way of setting the start and end frame of the Follow Path animation?

Thanks for your help.

enter image description here


I guess you have automatically generated an animation and you need to delete if before creating any keyframe on the Evaluation Time value:

  • Select your bezier curve.
  • Open the Graph Editor.
  • Unfold BezierCurve on the left to select the Evaluation Time track.
  • Press N to display the Graph Editor properties panel on the right.
  • Press the Modifiers tab.
  • Delete the Generator modifier.

enter image description here

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  • $\begingroup$ Many thanks, Moonboots, much appreciated! $\endgroup$ – Metin Seven Apr 5 '19 at 11:46

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