That error occurs because you use relative path (to the project dir), and because when creating a symbolic link with ln -s if the DIRECTORY is relative, it must be relative to the TARGET (not to the project/working dir)
In short: use absolute path (or use pathlib and .resolve() in the code )
Calling for example
python script/pre_immersive_distorted.py --videopath ../dataset/immersive/tmp/02_Flames
lead to broken link as it uses relative path instead of absolute path. That problem has been already reported here https://github.com/oppo-us-research/SpacetimeGaussians/issues/33#issuecomment-2031076951As I indicated there,
That commit fixes it using pathlib