qt plugin error in GUI.py

[YacratesWyh]

I tried twice from scratch of the GUI.py provided, but I haven't seen this error before, and no idea what's the reason. The Qt platform seems can't be initialized, even though I finished to compile cython.

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No PyTorch with Metal backend found. Try one of: conda install pytorch torchvision torchaudio -c pytorch-nightly pip3 install --pre torch torchvision torchaudio --extra-index-url https://download.pytorch.org/whl/nightly/cpu [<pyopencl.Device 'NVIDIA GeForce RTX 3090' on 'NVIDIA CUDA' at 0x5628d2175d50>] Using OpenCL lab2rgb qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found. This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: vnc, minimal, vkkhrdisplay, eglfs, wayland-egl, linuxfb, wayland, offscreen, minimalegl, xcb.

Aborted (core dumped)

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QT_QPA_PLATFORM=offscreen and install pip install opencv-python-headless found on https://github.com/NVlabs/instant-ngp/discussions/300 doesn't work for me

[YacratesWyh]

Found this works: for pyqt6 in ubuntu 20.04, following spell in forum linked above, solved the problem for me sudo apt-get install '^libxcb.*-dev' libx11-xcb-dev libglu1-mesa-dev libxrender-dev libxi-dev libxkbcommon-dev libxkbcommon-x11-dev Author: harish Oct 21, 2021

[YacratesWyh]

anyway to use it on a server? I am not familar with qt

[tedchao]

Hi,

Sorry, we do not have a server version right now. Do you have specific problems you ran into when following the install instructions?

Ted