ImportError: version Qt_5 not defined in file libQt5Xml.so.5 with link time reference

Describe the bug I run following command to obtain the point cloud in colab demo:

ns-export pointcloud --load-config outputs/data-nerfstudio-poster/nerfacto/2022-12-13_194317/config.yml --output-dir exports/pcd/ --num-points 1000000 --remove-outliers True --estimate-normals False --use-bounding-box True --bounding-box-min -1 -1 -1 --bounding-box-max 1 1 1

But it’s showing the next error:

Traceback (most recent call last):
  File "/usr/local/bin/ns-export", line 5, in <module>
    from scripts.exporter import entrypoint
  File "/usr/local/lib/python3.8/site-packages/scripts/exporter.py", line 20, in <module>
    from nerfstudio.exporter import texture_utils, tsdf_utils
  File "/usr/local/lib/python3.8/site-packages/nerfstudio/exporter/texture_utils.py", line 36, in <module>
    from nerfstudio.exporter.exporter_utils import Mesh
  File "/usr/local/lib/python3.8/site-packages/nerfstudio/exporter/exporter_utils.py", line 29, in <module>
    import pymeshlab
  File "/usr/local/lib/python3.8/site-packages/pymeshlab/__init__.py", line 11, in <module>
    from .pmeshlab import *
ImportError: /usr/local/lib/python3.8/site-packages/pymeshlab/lib/libmeshlab-common.so: symbol __cxa_throw_bad_array_new_length version Qt_5 not defined in file libQt5Xml.so.5 with link time reference

[akristoffersen]

@gowriaddepalli @tojiboyevf Looks like I was able to fix the issue by recommendation from this github issue.

After training and copying down the export command, run !conda remove --force qt-main to remove conda’s version of Qt. Then run the export command in a cell as you normally would.

This might have issues with training, so I would only run this after you’ve done your model training.

[borjatur]

I was getting this same error when using latest docker image 0.1.13, finally got this fixed by building my own image as follows

FROM dromni/nerfstudio:0.1.13
USER root
RUN apt remove libqt* qt* -y
USER user

EDIT: BTW this breaks the command ns-process-data, I was only interested in training though