Marked as "Legacy" ?

Today I tested some animations, the most did’t work.
It says: *"AnimationClip ‘Idler_ToIdle_1’ used by the Animation component ‘Soldier_f_0’ must be marked as “Legacy”.

I know it sounds a little bit stupid, but how to mark things?

Go to the project pane and click on the model that you are working with. Then, in the inspector go to the rig tab and set the animation type drop down menu as Legacy. Hope it helps!

[17300-tutorial+legacy+animations.png|17300]

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I dont have this option :frowning: someone plz help me