The supported_robot_follow_target_example has an error

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Isaac Sim Version

[v] 4.5.0
4.2.0
4.1.0
4.0.0
4.5.0
2023.1.1
2023.1.0-hotfix.1
Other (please specify):

Operating System

[v] Ubuntu 22.04
Ubuntu 20.04
Windows 11
Windows 10
Other (please specify):

GPU Information

  • Model: NVIDIA GeForce RTX 4070
  • Driver Version: NVIDIA-SMI 535.183.01

Topic Description

Detailed Description

The offical example of isaac sim 4.5.0 has this error as below. The example path is “/isaac-sim-4.5.0/standalone_examples/api/isaacsim.robot.manipulators/rmpflow_supported_robots/supported_robot_follow_target_example.py”

[Lula] Joint ‘left_inner_finger_joint’ is specified as a mimic joint, but its control chain [‘left_inner_finger_joint’ → ‘finger_joint’] terminates with a joint [‘finger_joint’] that is not a c-space coordinate. Mimic attributes will be ignored.
[Lula] Joint ‘left_inner_knuckle_joint’ is specified as a mimic joint, but its control chain [‘left_inner_knuckle_joint’ → ‘finger_joint’] terminates with a joint [‘finger_joint’] that is not a c-space coordinate. Mimic attributes will be ignored.
[Lula] Joint ‘right_inner_finger_joint’ is specified as a mimic joint, but its control chain [‘right_inner_finger_joint’ → ‘finger_joint’] terminates with a joint [‘finger_joint’] that is not a c-space coordinate. Mimic attributes will be ignored.
[Lula] Joint ‘right_inner_knuckle_joint’ is specified as a mimic joint, but its control chain [‘right_inner_knuckle_joint’ → ‘finger_joint’] terminates with a joint [‘finger_joint’] that is not a c-space coordinate. Mimic attributes will be ignored.
[Lula] Joint ‘right_outer_knuckle_joint’ is specified as a mimic joint, but its control chain [‘right_outer_knuckle_joint’ → ‘finger_joint’] terminates with a joint [‘finger_joint’] that is not a c-space coordinate. Mimic attributes will be ignored.

Steps to Reproduce

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Error Messages

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Screenshots or Videos

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Additional Information

What I’ve Tried

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Related Issues

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Additional Context

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Does the application work well despite these messages?

No, it didn’t work well, the UI stoped.

From my experience, the application works correctly on my side, despite the mimic joint warnings. However, it is important to ensure that the ‘target’ cube is moved during the simulation, as the robot relies on its position to follow the target.

These mimic joint warnings are expected. You can ignore them.

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