No aachen.db

[FabriceQwQ]

I run aachen.ipynb, encounter this problem

colmap_from_nvm.main(
    dataset / "3D-models/aachen_cvpr2018_db.nvm",
    dataset / "3D-models/database_intrinsics.txt",
    dataset / "aachen.db",
    outputs / "sfm_sift",
)

pairs_from_covisibility.main(outputs / "sfm_sift", sfm_pairs, num_matched=20)

---

AssertionError Traceback (most recent call last)
Cell In[8], line 1
----> 1 colmap_from_nvm.main(
2 dataset / "3D-models/aachen_cvpr2018_db.nvm",
3 dataset / "3D-models/database_intrinsics.txt",
4 dataset / "aachen.db",
5 outputs / "sfm_sift",
6 )
8 pairs_from_covisibility.main(outputs / "sfm_sift", sfm_pairs, num_matched=20)

File ~/Hierarchical-Localization-master/hloc/colmap_from_nvm.py:181, in main(nvm, intrinsics, database, output, skip_points)
179 assert nvm.exists(), nvm
180 assert intrinsics.exists(), intrinsics
--> 181 assert database.exists(), database
183 image_ids, camera_ids = recover_database_images_and_ids(database)
185 logger.info("Reading the NVM model...")

AssertionError: datasets/aachen/aachen.db

my issue is where this aachen.db comes from, in the files I download form https://www.visuallocalization.net/datasets/ not include this .db file

Thanks for your time