Imported robot create joint "you cannot create a joint between a body and itself"

ISAAC sim version: 4.2
I converted my own robot from Creo and want to add joint between the wheel and body, but it shows for each joints I created:
2024-11-26 07:28:45 [332,978ms] [Error] [omni.physx.plugin] PhysicsUSD: CreateJoint - you cannot create a joint between a body and itself (both joint bodies must be unique) for joint prim: /ROBOT20241126_asm/Xform/Joint/back_left_to_base
2024-11-26 07:28:45 [332,978ms] [Error] [omni.physx.plugin] PhysicsUSD: CreateJoint - you cannot create a joint between a body and itself (both joint bodies must be unique) for joint prim: /ROBOT20241126_asm/Xform/Joint/back_right_to_base
2024-11-26 07:28:45 [332,978ms] [Error] [omni.physx.plugin] PhysicsUSD: CreateJoint - you cannot create a joint between a body and itself (both joint bodies must be unique) for joint prim: /ROBOT20241126_asm/Xform/Joint/front_left_to_base
2024-11-26 07:28:45 [332,978ms] [Error] [omni.physx.plugin] PhysicsUSD: CreateJoint - you cannot create a joint between a body and itself (both joint bodies must be unique) for joint prim: /ROBOT20241126_asm/Xform/Joint/front_right_to_base
2024-11-26 07:28:45 [332,978ms] [Error] [omni.physx.plugin] PhysicsUSD: CreateJoint - you cannot create a joint between a body and itself (both joint bodies must be unique) for joint prim: /ROBOT20241126_asm/Xform/Joint/drawer_to_body

But I did separated each part