# Unity3D/AnimationRigging - Rig not a child Transform in the Animator hierarchy

I'm using Animation Rigging in Unity and was having some success until I realized my rig was built on the wrong GameObject. This was causing the Animator on the character to be overridden by the animator that Animation Rigging "Rig Setup" created.

I moved the Rig Builder component onto the Character GameObject that already had the Animator set up, but now every single rig component is causing an error. I've completely recreated the rig and all of the constraints, but still get the same error.

For example: "Could not resolve 'Character/Rig_HandIK/LeftHandIK' because it is not a child Transform in the Animator hierarchy". Character is the GO with Animator & Rig Builder components, Rig_HandIK is a child of Character with a Rig component, and LeftHandIK is a child of Rig_HandIK which has the Two Bone IK Constraint component.