No isaac examples in isaac gym

I have followed the tutorial in OmniIsaacGymEnvs/docs/framework/extension_workflow.md at main · NVIDIA-Omniverse/OmniIsaacGymEnvs · GitHub and https://docs.omniverse.nvidia.com/isaacsim/latest/isaac_gym_tutorials/tutorial_gym_extension_workflow.html#isaac-sim-app-tutorial-gym-extension
But still cannot show Isaac example on top menu bar
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