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google-deepmind / mujoco

Multi-Joint dynamics with Contact. A general purpose physics simulator.
https://mujoco.org
Apache License 2.0
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IOException, Error loading the XML, unsigned integer with an option suffix{K, M, G, T, P, E} #807

Closed lzs0603 closed 1 month ago

lzs0603 commented 1 year ago

Hi,

I noticed that for mujoco 2.3.2 and 2.3.3, while simulating the humanoid.xml using the Unity plugin with an intel chip Mac, the below error appeared and system paused. I tried using unityeditor 2021.3.21, 2021.3.1 and 2020.3.46, received the same error. For mujoco 2.3.1 and versions earlier, it seems to work just fine with not problem.

Here is a screenshot for the error:

Screen Shot 2023-04-09 at 10 09 48 AM
erez-tom commented 1 year ago

Is this a fresh import of an MJCF, or a saved scene? If it's a fresh import, what's the value in the XML of size->memory (if at all)? If it's a saved scene, do you have a MjGlobalSettings component? What's the value in the field Global Sizes->Memory?

gpzhaome commented 1 year ago

Is this a fresh import of an MJCF, or a saved scene? If it's a fresh import, what's the value in the XML of size->memory (if at all)? If it's a saved scene, do you have a MjGlobalSettings component? What's the value in the field Global Sizes->Memory?

I had the same issue. I'm using a fresh import of MJCF humanoid.xml model. The memory is not set in the xml file.

I fixed the issue by setting the Global Sizes->Memory to 2M in the MjGlobalSettings.

News0412 commented 1 year ago

Is this a fresh import of an MJCF, or a saved scene? If it's a fresh import, what's the value in the XML of size->memory (if at all)? If it's a saved scene, do you have a MjGlobalSettings component? What's the value in the field Global Sizes->Memory?

I had the same issue. I'm using a fresh import of MJCF humanoid.xml model. The memory is not set in the xml file.

I fixed the issue by setting the Global Sizes->Memory to 2M in the MjGlobalSettings.

I met the same issue after importing the example model (humanoid.xml), the Global Sizes->Memory was null.

And I tried to set the Global Sizes->Memory to -1(the default setting) in the Mj Global Settings of Global Settings, it run well. So I think this might be a problem of parameter transmission between the mujoco and the unity.

Balint-H commented 8 months ago

This issue has since been solved, and can be closed @erez-tom