Unable to generate trajectories of some tasks under physical series

[andreazhangyh]

Hi!

When trying to generate trajectories for the physical laws tasks, I ran into issues with both the simple_seesaw_use and simple_cuestick_use tasks.

For the simple_seesaw_use task, I encountered the following error:

Task:simple_seesaw_use did not implement get_expert_skill_sequence method
Traceback (most recent call last):
  File "/app/VLABench/scripts/trajectory_generation.py", line 124, in <module>
    generate_trajectory(args, i, logger)
  File "/app/VLABench/scripts/trajectory_generation.py", line 80, in generate_trajectory
    raise NotImplementedError("No expert skill sequence found")
NotImplementedError: No expert skill sequence found

For the simple_cuestick_use task, it throws a KeyError: 'simple_cuestick_use'.

I was wondering if this is because the code for the physical tasks is currently incomplete in the repository? Also, if I want to use the dataset for these physical tasks directly, where can I access it?

Thank you very much!