triangulation failed

[kaiyi98]

hello！ I use hloc to my dataset，but failed in triangulation. I don't understand why this error occurs.

`[2023/07/25 16:12:52 hloc INFO] Running 3D triangulation... [2023/07/25 16:12:55 hloc ERROR] Failed with output:

============================================================================== Loading database

Loading cameras... 1 in 0.003s Loading matches... 12630 in 0.524s Loading images... 642 in 1.009s (connected 642) Building correspondence graph... in 0.430s (ignored 0)

Traceback (most recent call last): File "/home/root/anaconda3/envs/hloc/lib/python3.9/runpy.py", line 197, in _run_module_as_main return _run_code(code, main_globals, None, File "/home/root/anaconda3/envs/hloc/lib/python3.9/runpy.py", line 87, in _run_code exec(code, run_globals) File "/home/root/zfl/Hierarchical-Localization/hloc/pipelines/ParkingLot/pipeline.py", line 62, in triangulation.main( File "/home/root/zfl/Hierarchical-Localization/hloc/triangulation.py", line 232, in main reconstruction = run_triangulation(sfm_dir, database, image_dir, reference, File "/home/root/zfl/Hierarchical-Localization/hloc/triangulation.py", line 194, in run_triangulation reconstruction = pycolmap.triangulate_points( IndexError: _Map_base::at`

[kaiyi98]

I have solved it!

[cameronosmith]

How did you solve it? Same problem here

[linhanwang]

How did you solve it? Same problem here

https://github.com/colmap/pycolmap/issues/116

[FelixMoeller3]

If you experience the same error, it may be worth downgrading your COLMAP installation. The current COLMAP installation is broken for triangulation as can be seen in the given issue