error when i running my Simulink model "Planar Joint 'linkball/​Subsystem1​/Planar' has base and follower ports that are rigidly connected"

Hi

Im doing a RL project, and when i running my pendulum model in the simulink i got this error :

Planar Joint 'linkball/Subsystem1/Planar' has base and follower ports that are rigidly connected; it is ignored. Resolve this issue in order to simulate the model.

I would be happy if you could help me solve this problem

Thanks

[Zhengyang Guo]

Hello yovel atia, I have the same problem as you. If you have solved it please mention me. Thanks in advance.