Standard Terrain Shader Upgrade to URP

I have built up my project using Universal Render Pipeline and as required I downloaded Prototype Pack from the Asset Store.

Prototyping Pack

Everything becomes pink when I opened the Demo Scene first time so as per my knowledge, I have upgraded objects materials to URP materials using Edit → Render Pipeline → Universal Render Pipeline → Upgrade Project Materials to URP Materials.

After this, all models started looking normal but the terrain doesn’t, here you have a screenshot:

As you are seeing Default-Terrain-Standard material not get changed so what to do for upgrading this material to URP?

You have to create a terrain material and add it to the terrain. It seems you still use the ‘old’ standard terrain material