To run HD or URP please import pack to HD or URP project and then import the support pack which is inside the asset in "HD and URP support" folder ". It will replace shaders, prefabs, and meshes so they will work with RP out of the box. Please also check the readme files inside that folder.
This pack is:
Huge library of 100% scanned assets, carefully optimized, atlased, LOD’ed;
Group of shaders which will bring better quality and simplify your workflow, if you want to use them;
Mountain environment with hill meadow, forest;
All shaders are shared between our all assets;
All demo files from the video are included in the asset;
Vegetation Studio Tree prefabs;
Pack contain water - non tesseled TRIAL from our R.A.M 2019 asset;