Goupeng

FYI, the pendulum example works fine.

Hey @FirefoxMetzger @wolfgangschwab, Thanks a lot for your response. I think the reason for the "triangle error" is indeed the region settings. For my case I changed the setting from...

Hey @traversaro, Thanks for your response. I read the link you point, it's very confusing to me, maybe because I don't have enough knowledge of C++. So how I can...

Hey @FirefoxMetzger, 1. I saved the world through GUI as a .txt file: [troubleshoot_world.txt](https://github.com/robotology/gym-ignition/files/6172133/troubleshoot_world.txt) 2. Followed your instruction (`IGN_VERBOSE`+`set_verbosity`), I got no extra error info except one warning: ![Screenshot from...

Hey @FirefoxMetzger, Indeed, the "color issue" is because of the lack of light. I can spawn the shapes and it looks good:  I try to drag...

> What about building the world from scratch in gym-ignition? Does that give you the missing light source? Could you give some instruction about how to build a world from...

No light either: 

Hey, 1. My graphics info: *-display description: VGA compatible controller product: Iris Graphics 540 vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 version: 0a width: 64 bits clock: 33MHz...