I had the same problem! Eventually tracked it down - change the fourth line down in the complete code:
Animation _animation;
to:
Animation<double> _animation;
That should do it.
It seems like markdown strips out the angle brackets and what's in them - something there I think must be the problem.
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I had the same problem! Eventually tracked it down - change the fourth line down in the complete code:
Animation _animation;
to:
Animation<double> _animation;
That should do it.
It seems like markdown strips out the angle brackets and what's in them - something there I think must be the problem.