How to AddDriver the rotation value of the armature for the rotation value of the object I did AddDriver for RotationX of the cube.
From the EditDriver, I selected Armature in Prop.

In Path, &quot;pose.bones [&quot; Bone &quot;]. Rotation_quaternion [0]&quot; was input.
However, rotating the armature did not move the Cube.
How to AddDriver the rotation value of the armature for the rotation value of the object?
I don't want to use Child of constraints.
Because I want to use Bone's local value.
In the drivers editor, variable tab, instead of "single property" use "transform channel" ( (X) Symbol), then choose your bone, choose X rotation with auto euler option, choose world or local space, and when rotating the bone in pose mode, X rotation of the cube will follow.