Error raised when running the example code

[yj-Tang]

Error raised when running the example code. --"[card.gym.plugin] Error creating viewer: Sim->Graphics is nullptr" , as shown in the picture

[matinator]

I had the same problem for Cartpole, i was able to solve it by adding this settings in isaacgymenvs.make, can you try to see if by doing so it works?

import gym 
import isaacgym 
import isaacgymenvs 
import torch 
envs = isaacgymenvs.make( 
    seed=0, 
    task="Cartpole", 
    num_envs=2000, 
    sim_device="cuda:0", 
    rl_device="cuda:0", 
    graphics_device_id=0, 
    headless=False, 
    multi_gpu=False, 
    virtual_screen_capture=False, 
    force_render=False
) 
envs.is_vector_env = True 
envs.reset() 
for _ in range(100): 
    envs.render() 
    envs.step( torch.rand((2000,)+envs.action_space.shape, device="cuda:0") 
    )

[yj-Tang]

I had the same problem for Cartpole, i was able to solve it by adding this settings in isaacgymenvs.make, can you try to see if by doing so it works?

import gym 
import isaacgym 
import isaacgymenvs 
import torch 
envs = isaacgymenvs.make( 
    seed=0, 
    task="Cartpole", 
    num_envs=2000, 
    sim_device="cuda:0", 
    rl_device="cuda:0", 
    graphics_device_id=0, 
    headless=False, 
    multi_gpu=False, 
    virtual_screen_capture=False, 
    force_render=False
) 
envs.is_vector_env = True 
envs.reset() 
for _ in range(100): 
    envs.render() 
    envs.step( torch.rand((2000,)+envs.action_space.shape, device="cuda:0") 
    )

It works for me as well! Thank you for the reply! ^ ^