Problems Importing Scene

I made a scene in an old project that I want in my new project. I tried copying the scene into my project, but everything was pink and I had a bunch of errors. I also tried exporting the old project as a package, then importing it into my new project, but same problem, when I went to the scene everything was pink and I had a bunch of errors. Does anybody know what the problem is or how to fix it?

The reason for pinkness is quite simple, you imported a scene into a new project (perfectly okay), however there would be textures inside this scene, scripts and all other things… A scene is not a game, it is a file/area were you can just put items, scripts and several things in… You need to have your textures from your old project into your new project - do the same with scripts if necessary.