Why is this throwing an "IndexOutOfRangeException: Index was outside the bounds of the array." error

I am getting a error on the line "playingAnimation = animInfo[0].clip.name;" but everything seems to be working fine. Any idea on how to stop the error from showing, or if I am doing something wrong. Code: void Update() { animInfo = animator.GetCurrentAnimatorClipInfo(0); playingAnimation = animInfo[0].clip.name; AnimationSet(); animator.CrossFade(targetAnimation, transitionTime, 0); } void AnimationSet() { transitionTime = 0.05f; targetAnimation = "Idle"; if(state.isMoving) { transitionTime = 0.1f; targetAnimation = "Walking"; if(state.isRunning) targetAnimation = "Running"; } }