Why can't I access content after copy/paste to new project folder?

Hi , I have a problem …
You know you have this content example project.
What i wanted to do is to copy a lot of stuff (meshes.material.effects e.t.c.)
Ok i did copy paste into my projects folder but when i tried to you a effect there was a problem . It couldn’t get the textures ! I don’t see why i have them also in my project.
Can somebody help me with this i just wanted more content for my project ??
BTW i a new into the engine

Hi Ivailo,

Many of these textures that were on the meshes were instances. The link breaks when migrating assets and you will have to either use the master mesh or create new Material Instance Constants for the individual meshes. Thank you and have a great day!