Error: FBX library failed to load - importing FBX data will not succeed. Message: No module named 'fbx'

[yl-wang996]

When I try to run the following code:

import gym
import isaacgym
import isaacgymenvs
import torch

envs = isaacgymenvs.make(
    seed=0,
    task="Ant",
    num_envs=20,
    sim_device="cuda:0",
    rl_device="cuda:0",
    graphics_device_id=0,
    headless=False,
    multi_gpu=False,
    virtual_screen_capture=True,
    force_render=False,
)
envs.is_vector_env = True
envs = gym.wrappers.RecordVideo(
    envs,
    "./videos",
    step_trigger=lambda step: step % 10000 == 0, # record the videos every 10000 steps
    video_length=100  # for each video record up to 100 steps
)
envs.reset()
print("the image of Isaac Gym viewer is an array of shape", envs.render(mode="rgb_array").shape)
for _ in range(100):
    envs.step(
        torch.rand((20,)+envs.action_space.shape, device="cuda:0")
    )

Then the generated video file is empty and report following error:

Error: FBX library failed to load - importing FBX data will not succeed. Message: No module named 'fbx'
FBX tools must be installed from https://help.autodesk.com/view/FBX/2020/ENU/? 
guid=FBX_Developer_Help_scripting_with_python_fbx_installing_python_fbx_html

Then by the given link, it told me to try to install the fbx python binding, there is no wheel file, which should be there. And everything seems get stuck.

[dibbla]

I also have trouble in recording the video, but is it really related to FBX? 👀

[maths4513]

I got the same issue - 'fbx error'. But in the end it seems has nothing to do with fbx python binding at all.

Ubuntu: 20.04 Python: 3.8 Nvidia Driver: 450.

Erros 1.fbx moudle import error. 2.GPU Pipe Line disabled.

How the problem is gone 1.Update nvidia driver from 450 to 510. 2.Reboot

[gavrielstate]

The FBX Importer error message is due to the fact that we import the skeleton code as part of the task initialization, but it's only used for the AMP examples:

https://github.com/NVIDIA-Omniverse/IsaacGymEnvs/blob/main/docs/rl_examples.md#amp-adversarial-motion-priors-humanoidamppy

You can ignore the FBX error for other environments if you don't have it installed.

[yl-wang996]

As other people said, perhaps it was caused by another issue. Thanks. I will check my code.

[yqi19]

Hi, have you solved this? I am running into the same issue!

[yxt181110417]

error1 : FBX library failed to load - importing FBX data will not succeed. error2: other problems

i solve the error2,but error1 is still exist. And the isaacgymenvs example is can still works. i run the task == Trifinger and task == Ant . So, maybe we can now ignore the FBX error , and continue learning