Visualizing code question

[Grimxiaohao]

When I execute the visuale.py file, the code gives me an error:
ImportError: Could not import backend for traitsui. Make sure you
have a suitable UI toolkit like PyQt/PySide or wxPython
installed.

What platform do you use to visualize the results?

[rlczddl]

have you fixed it?

[Grimxiaohao]

No.

[rlczddl]

Solved by zhangyp15/OccFormer#23 (comment)

[Grimxiaohao]

Thank you! I installed xvfb, but still get the above error.